North American natural gas pipeline map
An interactive map of the network that moves natural gas to your facilities: 223,600 miles of interstate and intrastate transmission pipeline from 229 operators, 385 underground storage fields, 478 processing plants, 32 trading hubs, 51 border crossings, every U.S. LNG export terminal and 40 shale and tight plays. Search an operator, click a state or zoom to a facility.
The U.S. natural gas transmission network mapped by EIA runs about 223,600 miles: 148,700 miles of interstate pipeline regulated by the Federal Energy Regulatory Commission and 75,000 miles of intrastate pipeline regulated by the states. Texas has the most (52,331 miles), followed by Oklahoma and Louisiana. Gas reaches a facility through this network, then a local utility’s distribution system, and each step adds a charge to the bill.
01 / 09
Explore the map
Click a pipeline to see its operator’s whole system, click any state for its pipeline profile, or search for an operator, facility, hub, play or state. Links on this page open the map at that place; the address bar keeps the view so you can share it.
LNG terminals: filled diamond operating, open diamond under construction, dashed proposed, grey import. Storage and processing dots are sized by capacity. Pipeline routes are generalized for the web and are not for locating buried lines; call 811 before digging.
02 / 09
Natural gas pipeline miles by state
Miles of transmission pipeline in each state, measured from the EIA map layer, with the state’s underground storage and processing plants. The five states with the most miles are Texas (52,331), Oklahoma (18,580), Louisiana (17,387), Ohio (6,908), Pennsylvania (6,755). Together they hold 48% of the mapped network. Select a column heading to sort; the table scrolls.
| State | Pipeline miles | Interstate | Intrastate | Operators | Storage fields | Working gas (Bcf) | Processing plants | Largest operators | Map |
|---|---|---|---|---|---|---|---|---|---|
| Texas | 52,331 | 16,210 | 36,121 | 62 | 31 | 544.8 | 176 | El Paso Texas Pipeline Co., Atmos Pipeline - Texas, Kinder Morgan Texas Pipeline Co. | |
| Oklahoma | 18,580 | 9,265 | 9,314 | 23 | 12 | 195.6 | 70 | ONEOK Gas Transportation LLC, Enogex Inc., TransOk Pipeline Co. | |
| Louisiana | 17,387 | 13,031 | 4,356 | 47 | 18 | 451.1 | 36 | Gulf South Pipeline Co., Tennessee Gas Pipeline, Louisiana Intrastate Gas Co. | |
| Ohio | 6,908 | 5,243 | 1,665 | 16 | 23 | 253.6 | 5 | Columbia Gas Transmission Co., East Ohio Gas Co., Texas Eastern Transmission Co. | |
| Pennsylvania | 6,755 | 6,145 | 610 | 17 | 46 | 427.4 | 10 | Columbia Gas Transmission Co., National Fuel Gas Supply Co., Texas Eastern Transmission Co. | |
| Mississippi | 6,708 | 5,101 | 1,607 | 24 | 11 | 201.9 | 1 | Gulf South Pipeline Co., Crosstex Mississippi Pipeline, Southern Natural Gas Co. | |
| California | 6,557 | 1,037 | 5,521 | 12 | 13 | 373.9 | 10 | California Gas Transmission Co., Southern California Gas Co., Mojave Pipeline Co. | |
| Kansas | 6,418 | 6,270 | 148 | 12 | 16 | 123.0 | 6 | Southern Star Central Gas Pipeline Co., Northern Natural Gas Co., Panhandle Eastern Pipeline Co. | |
| Arkansas | 6,092 | 5,549 | 543 | 12 | 2 | 8.9 | 1 | Enable Gas Transmission, Mississippi River Trans Corp., Ozark Gas Transmission, LLC | |
| Illinois | 6,046 | 3,428 | 2,617 | 19 | 27 | 303.5 | 2 | Northern Illinois Gas Co., Natural Gas Pipeline Co of America, Panhandle Eastern Pipeline Co. | |
| New Mexico | 4,867 | 3,596 | 1,270 | 9 | 2 | 59.7 | 24 | El Paso Natural Gas Co., Transwestern Gas Co., Public Service Co of NM | |
| Wyoming | 4,591 | 4,354 | 237 | 20 | 9 | 74.2 | 28 | Colorado Interstate Gas Co., Questar Pipeline Co., Wyoming Interstate Pipeline Co. | |
| Montana | 4,483 | 1,673 | 2,810 | 7 | 4 | 197.5 | 5 | Northwestern Energy Co., WBI Energy Transmission, Northern Natural Gas Co. | |
| Iowa | 4,216 | 4,216 | 0 | 5 | 4 | 90.3 | 0 | Northern Natural Gas Co., Natural Gas Pipeline Co of America, ANR Pipeline Co. | |
| Michigan | 4,201 | 2,233 | 1,968 | 11 | 44 | 684.0 | 9 | Michcon Gas Co., ANR Pipeline Co., Great Lakes Gas Transmission Co. | |
| Minnesota | 3,882 | 3,793 | 89 | 8 | 1 | 2.0 | 0 | Northern Natural Gas Co., Viking Gas Transmission Co., Great Lakes Gas Transmission Co. | |
| New York | 3,799 | 2,668 | 1,131 | 15 | 26 | 127.4 | 0 | National Fuel Gas Distr Co., Tennessee Gas Pipeline, Dominion Transmission Co. | |
| Arizona | 3,776 | 3,713 | 63 | 6 | 0 | 0.0 | 0 | El Paso Natural Gas Co., Transwestern Gas Co., Questar Southern Trails Line | |
| Colorado | 3,687 | 3,142 | 544 | 14 | 10 | 72.8 | 38 | Colorado Interstate Gas Co., Rocky Mountain Natural Gas Co., Northwest Pipeline | |
| Kentucky | 3,559 | 3,044 | 514 | 12 | 21 | 107.7 | 2 | Columbia Gas Transmission Co., Texas Gas Transmission Co., Kentucky-West Virginia Gas Co. | |
| West Virginia | 3,492 | 3,303 | 189 | 7 | 26 | 268.8 | 15 | Columbia Gas Transmission Co., Dominion Transmission Co., Equitrans Inc. | |
| Florida | 3,129 | 3,011 | 118 | 7 | 0 | 0.0 | 0 | Florida Gas Transmission Co., Gulfstream Pipeline Co., Sabal Trail Pipeline | |
| Wisconsin | 2,795 | 2,769 | 26 | 5 | 0 | 0.0 | 0 | ANR Pipeline Co., Northern Natural Gas Co., Viking Gas Transmission Co. | |
| Missouri | 2,485 | 2,093 | 392 | 14 | 1 | 3.7 | 0 | Southern Star Central Gas Pipeline Co., Mississippi River Trans Corp., Panhandle Eastern Pipeline Co. | |
| Georgia | 2,224 | 2,224 | 0 | 7 | 0 | 0.0 | 0 | Southern Natural Gas Co., South Georgia Gas Pipeline Co., Transcontinental Gas Pipeline | |
| Tennessee | 2,163 | 2,125 | 39 | 14 | 2 | 1.8 | 1 | East Tennessee Gas Co., Tennessee Gas Pipeline, Texas Gas Transmission Co. | |
| Alabama | 2,128 | 2,009 | 120 | 17 | 2 | 33.1 | 12 | Southern Natural Gas Co., Transcontinental Gas Pipeline, Gulf South Pipeline Co. | |
| Indiana | 2,127 | 2,101 | 26 | 11 | 21 | 32.1 | 0 | Texas Gas Transmission Co., ANR Pipeline Co., Panhandle Eastern Pipeline Co. | |
| North Dakota | 2,025 | 2,025 | 0 | 6 | 0 | 0.0 | 19 | WBI Energy Transmission, Alliance Pipeline System, Northern Border Pipeline Co. | |
| South Carolina | 1,658 | 1,658 | 0 | 3 | 0 | 0.0 | 0 | South Carolina Pipeline Corp., Transcontinental Gas Pipeline, Southern Natural Gas Co. | |
| Nebraska | 1,607 | 1,607 | 0 | 7 | 1 | 12.7 | 0 | Northern Natural Gas Co., Rockies Express Pipeline, Trailblazer Pipeline Co. | |
| Virginia | 1,591 | 1,370 | 221 | 7 | 2 | 4.9 | 0 | Columbia Gas Transmission Co., Transcontinental Gas Pipeline, East Tennessee Gas Co. | |
| Utah | 1,550 | 1,528 | 22 | 7 | 3 | 55.0 | 8 | Questar Pipeline Co., Kern River Gas Transmission Co., Northwest Pipeline | |
| Nevada | 1,433 | 595 | 837 | 6 | 0 | 0.0 | 0 | Paiute Pipeline Co., Ruby Pipeline LLC, Southwest Gas Corp. | |
| Washington | 1,219 | 1,219 | 0 | 3 | 1 | 24.6 | 0 | Northwest Pipeline, Gas Transmission - Northwest, Kelso-Beaver Pipeline | |
| South Dakota | 1,008 | 1,008 | 0 | 3 | 0 | 0.0 | 0 | Northern Natural Gas Co., Northern Border Pipeline Co., WBI Energy Transmission | |
| Oregon | 953 | 872 | 81 | 5 | 1 | 20.0 | 0 | Northwest Pipeline, Gas Transmission - Northwest, Coos County Pipeline | |
| North Carolina | 851 | 217 | 634 | 5 | 0 | 0.0 | 0 | Public Service Co of NC, Transcontinental Gas Pipeline, Cardinal Pipeline Co. | |
| Massachusetts | 663 | 663 | 0 | 4 | 0 | 0.0 | 0 | Tennessee Gas Pipeline, Algonquin Gas Transmission Co., PNGTS/Maritimes & Northeast | |
| Idaho | 635 | 635 | 0 | 2 | 0 | 0.0 | 0 | Northwest Pipeline, Gas Transmission - Northwest | |
| New Jersey | 592 | 592 | 0 | 5 | 0 | 0.0 | 0 | Transcontinental Gas Pipeline, Texas Eastern Transmission Co., Algonquin Gas Transmission Co. | |
| Maine | 465 | 371 | 95 | 4 | 0 | 0.0 | 0 | Maritimes & Northeast Pipeline US, Portland Natural Gas Pipeline, Northern Utilities (ME) | |
| Connecticut | 403 | 403 | 0 | 3 | 0 | 0.0 | 0 | Algonquin Gas Transmission Co., Tennessee Gas Pipeline, Iroquois Gas Transmission Co. | |
| Maryland | 395 | 395 | 0 | 6 | 1 | 18.3 | 0 | Columbia Gas Transmission Co., Eastern Shore Natural Gas Co., Transcontinental Gas Pipeline | |
| New Hampshire | 257 | 252 | 5 | 7 | 0 | 0.0 | 0 | Granite State Gas Transmission Co., Portland Natural Gas Pipeline, Tennessee Gas Pipeline | |
| Delaware | 241 | 241 | 0 | 3 | 0 | 0.0 | 0 | Eastern Shore Natural Gas Co., Columbia Gas Transmission Co., Transcontinental Gas Pipeline | |
| Rhode Island | 52 | 52 | 0 | 2 | 0 | 0.0 | 0 | Tennessee Gas Pipeline, Algonquin Gas Transmission Co. | |
| Vermont | 51 | 51 | 0 | 1 | 0 | 0.0 | 0 | Vermont Gas System, Portland Natural Gas Pipeline | |
| Alaska | 31 | 0 | 31 | 1 | 4 | 67.9 | 0 | Kenai Kachemak Pipeline |
03 / 09
Pipeline operators, ranked by mapped miles
All 229 operators in the EIA layer. The longest systems are Northern Natural Gas Co. (12,666 miles), Columbia Gas Transmission Co. (8,308 miles), Tennessee Gas Pipeline (7,584 miles), El Paso Natural Gas Co. (7,305 miles), ANR Pipeline Co. (7,124 miles). Operator names are as EIA records them; some systems have since changed owners (Enable Gas Transmission is now part of Energy Transfer, for example), so search both names. Your facility’s gas usually arrives through one or more of these systems before the local utility delivers it.
| Operator | Mapped miles | Type | States | Main states | Map |
|---|---|---|---|---|---|
| Northern Natural Gas Co. | 12,666 | Interstate | 12 | IA, MN, TX, WI, KS, NE +6 | |
| Columbia Gas Transmission Co. | 8,308 | Interstate | 10 | OH, WV, PA, KY, VA, NY +4 | |
| Tennessee Gas Pipeline | 7,584 | Interstate | 16 | LA, TX, MS, NY, PA, KY +10 | |
| El Paso Natural Gas Co. | 7,305 | Interstate | 6 | AZ, TX, NM, OK, CO, NV | |
| ANR Pipeline Co. | 7,124 | Interstate | 16 | OK, WI, LA, MI, IN, KS +10 | |
| El Paso Texas Pipeline Co. | 6,936 | Intrastate | 1 | TX | |
| Enable Gas Transmission | 6,445 | Interstate | 8 | AR, OK, LA, TX, KS, TN +2 | |
| Transcontinental Gas Pipeline | 6,228 | Interstate | 13 | TX, LA, PA, AL, VA, NJ +7 | |
| Gulf South Pipeline Co. | 6,171 | Interstate | 5 | LA, TX, MS, AL, FL | |
| Southern Star Central Gas Pipeline Co. | 5,617 | Interstate | 7 | KS, OK, MO, WY, CO, TX +1 | |
| Natural Gas Pipeline Co of America | 5,495 | Interstate | 10 | TX, IL, OK, IA, KS, AR +4 | |
| Texas Eastern Transmission Co. | 5,361 | Interstate | 15 | TX, PA, LA, MS, OH, AR +9 | |
| Atmos Pipeline - Texas | 5,335 | Intrastate | 1 | TX | |
| ONEOK Gas Transportation LLC | 4,582 | Intrastate | 2 | OK, TX | |
| Houston Pipeline Co. | 4,500 | Intrastate | 1 | TX | |
| Kinder Morgan Texas Pipeline Co. | 4,370 | Intrastate | 1 | TX | |
| Southern Natural Gas Co. | 3,913 | Interstate | 8 | GA, LA, AL, MS, FL, TX +2 | |
| Florida Gas Transmission Co. | 3,812 | Interstate | 5 | FL, TX, LA, AL, MS | |
| Energy Transfer | 3,677 | Intrastate | 2 | TX, OK | |
| California Gas Transmission Co. | 3,481 | Intrastate | 1 | CA | |
| Texas Gas Transmission Co. | 3,093 | Interstate | 9 | LA, KY, IN, TN, MS, AR +3 | |
| Northwest Pipeline | 2,926 | Interstate | 6 | WA, ID, OR, CO, WY, UT | |
| ONEOK Westex Pipeline | 2,913 | Intrastate | 2 | TX, NM | |
| Northwestern Energy Co. | 2,814 | Intrastate | 1 | MT | |
| Colorado Interstate Gas Co. | 2,808 | Interstate | 6 | CO, WY, OK, KS, TX, UT | |
| WBI Energy Transmission | 2,652 | Interstate | 4 | ND, MT, WY, SD | |
| Northern Illinois Gas Co. | 2,614 | Intrastate | 1 | IL | |
| TransOk Pipeline Co. | 2,612 | Interstate | 3 | OK, LA, TX | |
| Transwestern Gas Co. | 2,574 | Interstate | 6 | NM, AZ, TX, OK, CO, CA | |
| Dominion Transmission Co. | 2,561 | Interstate | 6 | WV, PA, NY, OH, VA, MD | |
| Enbridge Pipelines (East Texas) | 2,483 | Intrastate | 2 | TX, LA | |
| Panhandle Eastern Pipeline Co. | 2,443 | Interstate | 8 | KS, IL, MO, MI, OK, IN +2 | |
| Trunkline Gas Co. | 2,307 | Interstate | 8 | TX, LA, IL, IN, MS, TN +2 | |
| Enogex Inc. | 2,300 | Intrastate | 1 | OK | |
| ONEOK Gas Transmission LLC | 2,234 | Intrastate | 2 | OK, TX | |
| Columbia Gulf Pipeline | 2,091 | Interstate | 4 | LA, MS, KY, TN | |
| Mississippi River Trans Corp. | 2,027 | Interstate | 5 | AR, MO, LA, IL, TX | |
| Southern California Gas Co. | 1,928 | Intrastate | 1 | CA | |
| South Carolina Pipeline Corp. | 1,537 | Interstate | 2 | SC, GA | |
| Michcon Gas Co. | 1,522 | Intrastate | 1 | MI | |
| Questar Pipeline Co. | 1,475 | Interstate | 3 | UT, WY, CO | |
| National Fuel Gas Supply Co. | 1,415 | Interstate | 2 | PA, NY | |
| Louisiana Intrastate Gas Co. | 1,407 | Intrastate | 1 | LA | |
| Rockies Express Pipeline | 1,324 | Interstate | 8 | NE, MO, OH, IL, IN, CO +2 | |
| East Ohio Gas Co. | 1,280 | Intrastate | 1 | OH | |
| National Fuel Gas Distr Co. | 1,269 | Intrastate | 2 | NY, PA | |
| Northern Border Pipeline Co. | 1,251 | Interstate | 7 | IA, ND, SD, MT, IL, MN +1 | |
| Crosstex Texas Systems | 1,224 | Intrastate | 1 | TX | |
| Public Service Co of NM | 1,154 | Intrastate | 1 | NM | |
| Equitrans Inc. | 1,100 | Interstate | 2 | PA, WV | |
| East Tennessee Gas Co. | 998 | Interstate | 4 | TN, VA, GA, NC | |
| Great Lakes Gas Transmission Co. | 996 | Both | 3 | MI, MN, WI | |
| Alliance Pipeline System | 958 | Interstate | 4 | ND, MN, IA, IL | |
| Kern River Gas Transmission Co. | 933 | Interstate | 4 | UT, CA, NV, WY | |
| Crosstex Mississippi Pipeline | 910 | Intrastate | 1 | MS | |
| South Georgia Gas Pipeline Co. | 890 | Interstate | 3 | GA, FL, AL | |
| Oasis Pipeline | 860 | Intrastate | 1 | TX | |
| Gulfstream Pipeline Co. | 747 | Interstate | 2 | FL, AL | |
| Pony Express Pipeline | 717 | Interstate | 5 | KS, CO, NE, OK, WY | |
| Algonquin Gas Transmission Co. | 688 | Interstate | 5 | MA, CT, NJ, NY, RI | |
| Wyoming Interstate Pipeline Co. | 672 | Interstate | 3 | WY, CO, UT | |
| Ozark Gas Transmission, LLC | 655 | Interstate | 2 | AR, OK | |
| Bridgeline Holdings Pipeline LP | 654 | Intrastate | 1 | LA | |
| North Penn Gas Co. | 650 | Interstate | 1 | PA | |
| Ruby Pipeline LLC | 649 | Interstate | 5 | NV, UT, CA, WY, OR | |
| Paiute Pipeline Co. | 638 | Intrastate | 2 | NV, CA | |
| Viking Gas Transmission Co. | 604 | Interstate | 3 | MN, WI, ND | |
| Gas Transmission - Northwest | 591 | Interstate | 3 | OR, WA, ID | |
| Southern Union Gas Services (TX) | 581 | Intrastate | 2 | TX, NM | |
| Rocky Mountain Natural Gas Co. | 566 | Intrastate | 2 | CO, UT | |
| Mississippi Valley Gas Co. | 560 | Intrastate | 1 | MS | |
| Public Service Co of NC | 560 | Intrastate | 1 | NC | |
| Southeast Supply Header Pipeline Co. | 551 | Interstate | 3 | MS, AL, LA | |
| Louisiana Gas Co. | 549 | Intrastate | 1 | LA | |
| Arkansas Western LLC | 543 | Intrastate | 1 | AR | |
| Gulf Xpress | 521 | Interstate | 3 | KY, TN, MS | |
| Kentucky-West Virginia Gas Co. | 514 | Intrastate | 1 | KY | |
| Midcontinent Express Pipeline | 487 | Interstate | 6 | LA, MS, TX, OK, AL, AR | |
| Sabal Trail Pipeline | 485 | Interstate | 3 | FL, GA, AL | |
| Texas Intrastate Pipeline Co. | 481 | Intrastate | 1 | TX | |
| Gulf Connector Expansion Project | 479 | Interstate | 2 | TX, LA | |
| Coral Energy Pipeline Co. | 471 | Intrastate | 1 | TX | |
| Questar Southern Trails Line | 471 | Interstate | 3 | AZ, NM, CA | |
| Rover Pipeline | 463 | Interstate | 4 | OH, MI, WV, PA | |
| Michigan Gas Storage Co. | 445 | Intrastate | 1 | MI | |
| Monterey Pipeline Co. | 439 | Both | 1 | LA | |
| Trailblazer Pipeline Co. | 438 | Interstate | 3 | NE, CO, WY | |
| Acadian Gas Pipeline Sys | 419 | Intrastate | 1 | LA | |
| Gulf Coast Express | 414 | Intrastate | 1 | TX | |
| Iroquois Gas Transmission Co. | 411 | Interstate | 2 | NY, CT | |
| Sea Robin Pipeline | 402 | Interstate | 1 | LA | |
| Cimarron River Pipeline | 379 | Interstate | 3 | OK, TX, KS | |
| Cheyenne Plains Pipeline Co. | 374 | Interstate | 2 | CO, KS | |
| Amoco Pipeline Co. | 368 | Interstate | 1 | TX | |
| Centana Pipeline Co (TX) | 366 | Intrastate | 2 | TX, LA | |
| Midwestern Gas Transmission Co. | 360 | Interstate | 4 | IL, IN, KY, TN | |
| Stingray Pipeline | 358 | Interstate | 1 | LA | |
| Mojave Pipeline Co. | 347 | Interstate | 2 | CA, AZ | |
| Dow Pipeline Co (TX) | 337 | Intrastate | 1 | TX | |
| Eastern Shore Natural Gas Co. | 333 | Interstate | 3 | DE, MD, PA | |
| Rockies Express (Entrega) | 328 | Interstate | 2 | WY, CO | |
| Vector Pipeline Co. | 328 | Interstate | 3 | MI, IN, IL | |
| High Island Offshore | 327 | Interstate | 0 | ||
| Dauphin Island Gathering System | 323 | Interstate | 1 | AL | |
| TransColorado Gas Transmission Co. | 299 | Interstate | 2 | CO, NM | |
| West Texas Gas | 299 | Intrastate | 1 | TX | |
| Bison Pipeline | 292 | Interstate | 3 | ND, MT, WY | |
| Destin Pipeline Offshore (SHELL) | 291 | Interstate | 1 | MS | |
| Grasslands Pipeline | 289 | Interstate | 3 | MT, ND, WY | |
| Tuscarora Pipeline Co. | 288 | Interstate | 3 | CA, NV, OR | |
| Norse Pipeline LLC | 282 | Interstate | 2 | PA, NY | |
| East West project mainline | 270 | Interstate | 2 | TX, LA | |
| Empire Pipeline | 253 | Both | 1 | NY | |
| MGTC Pipeline System | 246 | Interstate | 1 | WY | |
| NEXUS Gas Transmission | 245 | Interstate | 2 | OH, MI | |
| Virginia Natural Gas Co. | 244 | Intrastate | 1 | VA | |
| MIGC Pipeline System | 240 | Interstate | 1 | WY | |
| Millennium Pipeline Co. | 237 | Interstate | 2 | NY, PA | |
| Overland Trails Transmission Co. | 237 | Intrastate | 1 | WY | |
| Enbridge Pipelines (AlaTenn) | 229 | Interstate | 3 | AL, MS, TN | |
| Southwest Gas Corp. | 226 | Intrastate | 3 | NV, CA, AZ | |
| Acadian Haynesville Pipeline | 223 | Intrastate | 1 | LA | |
| Discovery Pipeline System | 222 | Interstate | 1 | LA | |
| Maritimes & Northeast Pipeline US | 222 | Interstate | 2 | ME, NH | |
| Brooklyn Union Gas Co. | 218 | Intrastate | 1 | NY | |
| Crossroads Pipeline Co. | 204 | Interstate | 2 | IN, OH | |
| West Ohio Gas Co. | 199 | Intrastate | 1 | OH | |
| Roadrunner | 198 | Intrastate | 1 | TX | |
| Overthrust Pipeline Co. | 194 | Interstate | 1 | WY | |
| Roadrunner Eastbound | 193 | Intrastate | 1 | TX | |
| Comanche Trail Pipeline | 192 | Intrastate | 1 | TX | |
| Stratton Ridge | 192 | Intrastate | 1 | TX | |
| Hope Natural Gas Co. | 189 | Intrastate | 1 | WV | |
| Elba Express Pipeline | 186 | Interstate | 1 | GA | |
| North Coast Gas Transmission Co. | 186 | Intrastate | 1 | OH | |
| Dow Pipeline Co (LA) | 184 | Intrastate | 1 | LA | |
| Missouri Public Service Co. | 181 | Intrastate | 1 | MO | |
| Portland Natural Gas Pipeline | 181 | Interstate | 2 | ME, NH | |
| Fayetteville Express Pipeline | 179 | Interstate | 2 | AR, MS | |
| ETC Tiger Pipeline | 171 | Interstate | 2 | LA, TX | |
| Guardian Pipeline Co. | 157 | Interstate | 2 | IL, WI | |
| Sabine LLC | 156 | Interstate | 2 | LA, TX | |
| Agua Blanca Pipeline | 155 | Intrastate | 1 | TX | |
| Valley Crossing Pipeline | 155 | Intrastate | 1 | TX | |
| Peoples Gas Co (TX) | 148 | Intrastate | 1 | KS | |
| Trans Pecos Pipeline | 143 | Intrastate | 1 | TX | |
| Missouri Pipeline Co. | 142 | Intrastate | 2 | MO, IL | |
| The Exploration Co. | 138 | Intrastate | 1 | TX | |
| St Lawrence Gas Co. | 132 | Interstate | 1 | NY | |
| Kinder Morgan Louisiana Pipeline | 131 | Intrastate | 1 | LA | |
| San Diego Gas & Elec Co. | 131 | Intrastate | 1 | CA | |
| Independence Trail Pipeline Co. | 130 | Intrastate | 0 | ||
| Texas Louisiana Markets Project | 122 | Interstate | 2 | LA, TX | |
| NET Mexico Pipeline | 121 | Interstate | 1 | TX | |
| Crosstex Alabama System | 120 | Intrastate | 1 | AL | |
| Black Marlin Pipeline Co. | 118 | Interstate | 2 | TX, OK | |
| Florida Southeast Connection | 118 | Intrastate | 1 | FL | |
| Crosstex Arkoma System | 117 | Intrastate | 1 | OK | |
| PNGTS/Maritimes & Northeast | 113 | Interstate | 3 | MA, ME, NH | |
| St. James Supply Project | 113 | Intrastate | 1 | LA | |
| Chandeleur Pipeline Co. | 109 | Interstate | 1 | LA | |
| Northern Utilities (ME) | 102 | Both | 2 | ME, NH | |
| Nautilus Pipeline System | 98 | Interstate | 1 | LA | |
| Acadian Gas Gathering System | 94 | Intrastate | 1 | LA | |
| Blue Dolphin Pipeline Co. | 94 | Interstate | 1 | TX | |
| Hutchinson Pipeline | 89 | Intrastate | 1 | MN | |
| Granite State Gas Transmission Co. | 85 | Interstate | 2 | NH, MA | |
| Cove Point Pipeline | 83 | Interstate | 2 | MD, VA | |
| Coos County Pipeline | 81 | Intrastate | 1 | OR | |
| North Baja Pipeline Co. | 80 | Interstate | 1 | CA | |
| Cardinal Pipeline Co. | 75 | Intrastate | 1 | NC | |
| Red Bluff Express Pipeline | 72 | Intrastate | 1 | TX | |
| Union Light Heat & Power | 70 | Interstate | 2 | KY, OH | |
| Mississippi Canyon Gathering (Shell) | 66 | Interstate | 0 | ||
| Missouri Gas Co. | 65 | Intrastate | 1 | MO | |
| Petal Gas Storage Co. | 64 | Intrastate | 1 | MS | |
| Worsham-Steed Pipeline | 64 | Intrastate | 1 | TX | |
| Spire St. Louis Pipeline | 63 | Interstate | 2 | IL, MO | |
| Centra Minnesota Pipeline Co. | 61 | Interstate | 1 | MN | |
| Mustang Fuel Co. | 58 | Intrastate | 1 | MS | |
| Sierrita Gas Pipeline | 57 | Intrastate | 1 | AZ | |
| Centana Pipeline Co (LA) | 54 | Intrastate | 1 | LA | |
| Risberg Line | 53 | Interstate | 2 | PA, OH | |
| Vermont Gas System | 51 | Interstate | 1 | VT | |
| Midla-Natchez Pipeline | 49 | Interstate | 2 | LA, MS | |
| Canton Pipeline | 48 | Intrastate | 1 | OK | |
| Mississippi Canyon Gathering (URSA) | 47 | Interstate | 0 | ||
| KeyStone Gas (Sold to in 2005) | 44 | Intrastate | 1 | OK | |
| Mississippi Canyon Gathering (MARS) | 42 | Interstate | 0 | ||
| Panther Interstate Pipeline LLC | 40 | Interstate | 0 | ||
| Tengasco Gas Co. | 39 | Intrastate | 1 | TN | |
| Mississippi Canyon Gathering System | 37 | Intrastate | 0 | ||
| Revolution Pipeline | 37 | Intrastate | 1 | PA | |
| Venice Gas Gathering Sys | 36 | Intrastate | 1 | LA | |
| Garden Banks Auger 1 Line | 35 | Interstate | 0 | ||
| Bluewater Pipeline Co. | 34 | Interstate | 1 | MI | |
| EnergyNorth Natural Gas Co. | 34 | Interstate | 1 | NH | |
| Shoshone Pipeline | 33 | Interstate | 2 | WY, MT | |
| Constitution Pipeline | 32 | Intrastate | 0 | ||
| Valley Gas Pipeline Co. | 32 | Intrastate | 1 | LA | |
| Enbridge Pipelines (UTOS) | 31 | Interstate | 1 | LA | |
| Kenai Kachemak Pipeline | 31 | Intrastate | 1 | AK | |
| Creole Pipeline Co. | 30 | Intrastate | 1 | LA | |
| Evangeline Gas Pipeline | 30 | Intrastate | 1 | LA | |
| Tuscaloosa Pipeline Co. | 30 | Intrastate | 1 | LA | |
| Oklahoma Texas Gas Co. | 29 | Intrastate | 2 | TX, OK | |
| Chandeleur Pipeline Co (MAGS) | 27 | Interstate | 1 | AL | |
| Heartland Pipeline Co. | 26 | Intrastate | 1 | IN | |
| Horizon Pipeline Co. | 26 | Interstate | 1 | IL | |
| Pecan Pipeline Company | 26 | Intrastate | 1 | TX | |
| Southern Pines Storage Lateral | 26 | Interstate | 2 | MS, AL | |
| Corpus Christi Pipeline | 23 | Intrastate | 1 | TX | |
| North Country Pipeline Co. | 22 | Interstate | 1 | NY | |
| ANR Storage Co. | 20 | Interstate | 1 | MI | |
| Nora Transmission Co. | 19 | Interstate | 1 | VA | |
| Kelso-Beaver Pipeline | 18 | Interstate | 1 | WA | |
| Impulsora Pipeline | 16 | Both | 1 | TX | |
| Cornerstone Pipeline Co. | 15 | Intrastate | 1 | MS | |
| USG Pipeline Co. | 15 | Interstate | 2 | TN, AL | |
| Penn York Energy Co. | 14 | Interstate | 2 | NY, PA | |
| SONAT Exploration Co. | 14 | Intrastate | 0 | ||
| Birdsboro Pipeline | 13 | Intrastate | 1 | PA | |
| Atmos Energy (United Cities Gas Co) | 8 | Intrastate | 1 | MO | |
| Missouri Interstate Gas, LLC | 7 | Interstate | 2 | MO, IL | |
| Mississippi Canyon Gathering | 6 | Intrastate | 1 | LA | |
| Centra Pipeline Co. | 5 | Interstate | 1 | MN | |
| Rockies Express (Echo Springs Lateral) | 5 | Interstate | 1 | WY | |
| KO Transmission Co. | 3 | Interstate | 1 | KY | |
| Canyon Creek Compression Co. | 0 | Both | 0 |
04 / 09
LNG export and import terminals
9 U.S. export terminals were operating in October 2026 with about 132 million tonnes a year (mtpa) of nameplate capacity, and 6 more under construction would add about 102 mtpa by 2031. Almost all of it sits on the Gulf Coast of Texas and Louisiana, which is why feed gas demand there shapes pipeline flows and prices across the South. Canada’s first large-scale export plant, LNG Canada, started in 2025, and Mexico’s Energía Costa Azul began exporting U.S. gas from Baja California in 2026. For the price outlook, see our U.S. LNG exports outlook.
| Terminal | Location | Owner or operator | Capacity (mtpa) | Status | Notes | Map |
|---|---|---|---|---|---|---|
| Sabine Pass LNG | LA, U.S. | Cheniere | 27 | Operating | Operating since 2016; expansion (Train 7 and reliquefaction, 6+ mtpa) targeting a decision in early 2027 | |
| Corpus Christi LNG | TX, U.S. | Cheniere | 23.5 | Operating | Stage 3 completed August 2026; Midscale Trains 8–9 due second half of 2028 | |
| Plaquemines LNG | LA, U.S. | Venture Global | 19.8 | Operating | Exporting at full capacity; commercial operation targeted Q4 2026 (Phase 1) and mid-2027 (Phase 2) | |
| Golden Pass LNG | TX, U.S. | QatarEnergy, ExxonMobil | 15.6 | Operating | Train 1 shipped first cargo April 2026; Train 2 late 2026; Train 3 in 2027 | |
| Freeport LNG | TX, U.S. | Freeport LNG | 15 | Operating | Operating since 2019–2020 | |
| Cameron LNG | LA, U.S. | Sempra and partners | 13.5 | Operating | Operating since 2019–2020 | |
| Calcasieu Pass LNG | LA, U.S. | Venture Global | 10 | Operating | Operating since 2022 | |
| Cove Point LNG | MD, U.S. | BHE GT&S | 5.3 | Operating | Exporting since 2018; also has import capability | |
| Elba Island LNG | GA, U.S. | Kinder Morgan | 2.5 | Operating | Exporting since 2019–2020; also has import capability | |
| Rio Grande LNG | TX, U.S. | NextDecade | 27 | Under construction | Under construction: Trains 1–2 in 2027, Train 3 in 2028, Trains 4–5 in 2030–2031 | |
| Port Arthur LNG | TX, U.S. | Sempra | 24 | Under construction | Under construction: Phase 1 in 2027, Phase 2 around 2030–2031 | |
| CP2 LNG | LA, U.S. | Venture Global | 20 | Under construction | Under construction: first LNG second half of 2027; Phase 2 sanctioned March 2026 | |
| Louisiana LNG | LA, U.S. | Woodside | 16.6 | Under construction | Under construction: first LNG targeted 2029 | |
| Commonwealth LNG | LA, U.S. | Caturus | 9.5 | Under construction | Under construction: sanctioned May 2026, start targeted 2030 | |
| Delfin FLNG 1 | Offshore LA, U.S. | Delfin Midstream | 4.4 | Under construction | Under construction: sanctioned June 2026, start targeted 2030 | |
| Everett Marine Terminal | MA, U.S. | Constellation | Import | Import terminal serving New England | ||
| Northeast Gateway | Offshore MA, U.S. | Excelerate Energy | Import | Offshore import buoy system, used in peak winter periods | ||
| Lake Charles LNG | LA, U.S. | Energy Transfer | Import | Import terminal; an export project at the site has been proposed | ||
| Gulf LNG | MS, U.S. | Kinder Morgan and partners | Import | Import terminal at Pascagoula | ||
| LNG Canada | BC, Canada | Shell and partners | 14 | Operating | Phase 1 (two trains) operating; first cargo June 2025 | |
| Cedar LNG | BC, Canada | Haisla Nation, Pembina | 3.3 | Under construction | Floating LNG under construction at Kitimat, start targeted 2028 | |
| Woodfibre LNG | BC, Canada | Woodfibre LNG | 2.1 | Under construction | Under construction near Squamish, start targeted 2027 | |
| Ksi Lisims LNG | BC, Canada | Nisga'a Nation and partners | 12 | Proposed | Proposed; final investment decision pending | |
| Canaport LNG | NB, Canada | Repsol | Import | Import terminal at Saint John | ||
| Energía Costa Azul | BC (MX), Mexico | Sempra Infrastructure | 3.25 | Operating | Export train shipped its first cargo July 2026; long-standing import terminal on the same site | |
| Altamira FLNG (Fast LNG 1) | Tamps., Mexico | New Fortress Energy | 1.4 | Operating | Floating liquefaction operating offshore Altamira since 2024 | |
| Altamira LNG import terminal | Tamps., Mexico | Vopak, Enagás | Import | Import terminal | ||
| Manzanillo LNG | Col., Mexico | KMS (Kogas, Mitsui, Samsung) | Import | Import terminal on the Pacific coast |
05 / 09
Largest underground natural gas storage fields
Storage is what lets the system meet winter peaks: gas injected in summer is withdrawn when heating demand outruns pipeline capacity. The map shows 385 storage fields with 4,842 Bcf of working gas capacity in total: 306 depleted field fields (3,892 Bcf); 33 salt dome fields (546 Bcf); 46 aquifer fields (404 Bcf). Michigan (684 Bcf), Texas (545 Bcf), Louisiana (451 Bcf), Pennsylvania (427 Bcf) hold the most. The 30 largest fields by working gas are below; every field is on the map.
| Field | State | Operator | Type | Working gas (Bcf) | Max. deliverability (MMcf/d) | Map |
|---|---|---|---|---|---|---|
| Baker | Montana | WBI Energy Transmission Inc | Depleted Field | 164.4 | 155 | |
| West Clear Lake | Texas | Kinder Morgan Tejas Pipeline LLC | Depleted Field | 99.4 | 895 | |
| North Lansing | Texas | Natural Gas Pipeline Co of America | Depleted Field | 96.0 | 1,240 | |
| Washington 10 Complex | Michigan | Michigan Consolidated Gas Company | Depleted Field | 90.1 | 1,520 | |
| Kennedy Lost Creek | West Virginia | Dominion Energy Transmission Inc | Depleted Field | 89.5 | 1,220 | |
| Aliso Canyon | California | Southern California Gas Company | Depleted Field | 86.2 | 1,860 | |
| Bistineau Gas Storage | Louisiana | Gulf South Pipeline | Depleted Field | 85.7 | 1,200 | |
| McDonald Island | California | Pacific Gas and Electric Company | Depleted Field | 82.0 | 1,680 | |
| Oakford | Pennsylvania | Dominion Energy Transmission Inc | Depleted Field | 81.4 | 1,405 | |
| Wild Goose | California | Wild Goose Gas Storage LLC | Depleted Field | 75.0 | 950 | |
| Washington | Louisiana | Transcontinental Gas Pipeline Company | Depleted Field | 75.0 | 790 | |
| Arcadia | Louisiana | Arcadia Gas Storage LLC | Salt Dome | 74.4 | 1,800 | |
| Midland | Kentucky | Texas Gas Transmission Corporation | Depleted Field | 65.2 | 1,030 | |
| Sayre | Oklahoma | Natural Gas Pipeline Co of America | Depleted Field | 62.2 | 667 | |
| Leidy Tamarack | Pennsylvania | Dominion Energy Transmission Inc | Depleted Field | 61.2 | 1,224 | |
| Ancona | Illinois | Nicor | Aquifer | 60.9 | 850 | |
| Belle River | Michigan | Michigan Consolidated Gas Company | Depleted Field | 59.6 | 2,175 | |
| Stark-Summit | Ohio | Dominion Energy Ohio | Depleted Field | 59.4 | 2,134 | |
| Markham | Texas | Tres Palacios Gas Storage LLC | Salt Dome | 56.8 | 3,580 | |
| Pine Prairie | Louisiana | Pine Prairie Energy Center LLC | Salt Dome | 56.0 | 3,200 | |
| Ellisburg | Pennsylvania | Dominion Energy Transmission Inc | Depleted Field | 55.5 | 1,046 | |
| Clay Basin | Utah | Questar Pipeline Company | Depleted Field | 54.0 | 765 | |
| Bammel | Texas | Houston Pipe Line Company | Depleted Field | 52.5 | 1,200 | |
| Kenai | Alaska | Hilcorp Alaska LLC | Depleted Field | 51.7 | 60 | |
| Troy Grove | Illinois | Nicor | Aquifer | 48.0 | 1,100 | |
| Ray | Michigan | Consumers Energy Company | Depleted Field | 47.3 | 1,555 | |
| Blue Lake 18-A | Michigan | Blue Lake Storage Company | Depleted Field | 47.1 | 700 | |
| Washington Ranch | New Mexico | El Paso Natural Gas Company | Depleted Field | 44.0 | 250 | |
| Redfield | Iowa | Northern Natural Gas Company | Aquifer | 42.4 | 666 | |
| Cunningham | Kansas | Northern Natural Gas Company | Depleted Field | 40.9 | 755 |
06 / 09
Natural gas border crossings with Canada and Mexico
The map shows 51 pipeline border crossings: 21 carrying gas from Canada into the United States, 20 carrying U.S. gas into Mexico and the rest flowing from the United States into Canada. Imports from Western Canada supply much of the Pacific Northwest and the Upper Midwest; pipelines into Mexico carry Permian and Eagle Ford gas to Mexican power plants and industry. Capacities are EIA’s 2017 figures; several crossings have been expanded since.
| Pipeline | Location | Direction | Capacity (MMcf/d) | Map |
|---|---|---|---|---|
| Great Lakes Transmission | Sault Ste. Marie, Michigan | United States → Canada | 2,210 | |
| Great Lakes Transmission | St. Clair, Ontario | United States → Canada | 1,350 | |
| Vector Pipeline Co | St. Clair, Ontario | United States → Canada | 1,350 | |
| Empire Pipeline | Grand Island, New York | United States → Canada | 655 | |
| Bluewater Pipeline Co | Marysville, Michigan | United States → Canada | 250 | |
| ANR Pipeline Co | Marysville, Michigan | United States → Canada | 150 | |
| Panhandle Eastern PL | Detroit, Michigan | United States → Canada | 100 | |
| Havre Pipeline | Havre, Montana | United States → Canada | 75 | |
| Centra Pipeline Minnesota | Baudette, Minnesota | United States → Canada | 63 | |
| Michigan Consolidated Gas | St. Clair, Ontario | United States → Canada | ||
| NET Mexico Pipeline | Rio Grande, Texas | United States → Mexico | 2,100 | |
| Trans-Pecos Pipeline | Presidio, Texas | United States → Mexico | 1,300 | |
| Comanche Trail Pipeline | San Elizario, Texas | United States → Mexico | 1,100 | |
| Roadrunner Pipeline | San Elizario, Texas | United States → Mexico | 570 | |
| North Baja Pipeline Co | Ogilby Mesa, California | United States → Mexico | 500 | |
| West Texas Gas | Del Rio, Texas | United States → Mexico | 472 | |
| Kinder Morgan Texas Pipeline | Roma, Texas | United States → Mexico | 375 | |
| El Paso Natural Gas Co | Clint, Texas | United States → Mexico | 366 | |
| Texas Eastern Pipeline | Hidalgo, Texas | United States → Mexico | 350 | |
| Tennessee Gas Pipeline | Rio Bravo, Texas | United States → Mexico | 315 | |
| San Diego Gas and Electric | Otay Mesa, California | United States → Mexico | 300 | |
| El Paso Natural Gas Pipeline | Nogales, Arizona | United States → Mexico | 261 | |
| Tennessee Gas Pipeline | Alamo, Texas | United States → Mexico | 215 | |
| Sierrita Gas Pipeline | Sasabe, Arizona | United States → Mexico | 200 | |
| El Paso Natural Gas Pipeline | Douglas, Arizona | United States → Mexico | 185 | |
| Houston Pipeline - Edinburgh Lateral | Penitas, Texas | United States → Mexico | 140 | |
| Norteno Pipeline | El Paso, Texas | United States → Mexico | 90 | |
| El Paso Natural Gas Pipeline | Naco, Arizona | United States → Mexico | 57 | |
| Southern California Gas Co | Calexico, California | United States → Mexico | 25 | |
| West Texas Gas | Eagle Pass, Coahuila | United States → Mexico | 15 | |
| Northwest Pipeline | Sumas, Washington | Canada → United States | 3,800 | |
| Gas Transmission Northwest LLC | Eastport, Idaho | Canada → United States | 2,967 | |
| Great Lakes Transmission | Noyes, Minnesota | Canada → United States | 2,412 | |
| Northern Border Pipeline | Port of Morgan, Montana | Canada → United States | 2,373 | |
| Alliance Pipeline | Sherwood, North Dakota | Canada → United States | 1,875 | |
| Ferndale Pipeline | Sumas, Washington | Canada → United States | 1,832 | |
| Cascade Natural Gas | Sumas, Washington | Canada → United States | 1,832 | |
| Tennesse Gas Pipeline Co | Niagara, New York | Canada → United States | 1,297 | |
| Iroquois Pipeline Co | Waddington, Ontario | Canada → United States | 1,150 | |
| Maritimes & Northeast Pipeline Co | Calais, Maine | Canada → United States | 830 | |
| Viking Gas Tranmssion | Noyes, Minnesota | Canada → United States | 516 | |
| Portland Gas Transmission Co | Pittsburg, New Hampshire | Canada → United States | 216 | |
| Puget Sound Energy | Sumas, Washington | Canada → United States | 140 | |
| Centra Pipeline Minnesota | Warroad, Minnesota | Canada → United States | 63 | |
| St. Lawrence Gas | Massena, New York | Canada → United States | 62 | |
| Vermont Gas System | Highgate Springs, Vermont | Canada → United States | 62 | |
| North County Pipeline Co | Champlain, New York | Canada → United States | 56 | |
| Williston Basin Pipeline | Portal, North Dakota | Canada → United States | 46 | |
| Centra Pipeline Minnesota | International Falls, Minnesota | Canada → United States | 25 | |
| NorthWestern Energy | Whitlash, Montana | Canada → United States | 24 | |
| Northwestern Energy | Babb, Montana | Canada → United States | 20 |
07 / 09
Trading hubs and where gas is priced
Gas is bought and sold at hubs and pipeline pricing points. Henry Hub in Erath, Louisiana, is the national benchmark and the delivery point for NYMEX futures; most other points trade at a premium or discount to it, called basis. Basis reflects pipeline capacity: where pipes are full, like Waha in the Permian Basin when takeaway is short or Algonquin Citygates in New England in a cold snap, local prices can swing far from Henry Hub. If your supply contract is priced at one of these points, its basis is part of your cost. The 32 pricing points EIA tracks are on the map:
Shale and tight plays
The 40 plays EIA maps in the Lower 48, largest first. Most U.S. production growth since 2008 has come from these formations, led by the Marcellus and Utica in Appalachia, the Permian’s Wolfcamp and Bone Spring, and the Haynesville in Louisiana and East Texas.
| Play | Basin | Rock | Area (sq mi) | Map |
|---|---|---|---|---|
| Utica | Appalachian | Mixed Shale & Limestone | 59,054 | |
| Marcellus | Appalachian | Shale | 58,326 | |
| Devonian (Ohio) | Appalachian | Shale | 54,665 | |
| Antrim | Michigan | Shale | 43,796 | |
| Niobrara | Denver Basin, North-Central MT, Park Basin, Piceance Basin, Powder River | MIxed Shale & Chalk, Mixed Shale & Chalk | 33,790 | |
| Three Forks | Williston | Mixed Shale & Dolostone-Siltstone-Sandstone | 31,055 | |
| Barnett | Ft. Worth | Shale | 26,311 | |
| Bakken | Williston | Mixed Shale & Dolostone-Siltstone-Sandstone | 25,929 | |
| HilliardBaxterMancos-Niobrara | Greater Green River | MIxed Shale & Chalk | 17,932 | |
| Eagle Ford | Western Gulf | Shale | 14,644 | |
| Tuscaloosa | TX-LA-MS Salt | Shale | 12,568 | |
| New Albany | Illinois | Shale | 12,565 | |
| Haynesville-Bossier | TX-LA-MS Salt Basin | Shale | 11,167 | |
| Wolfcamp - Midland | Permian | Mixed Shale & Limestone | 10,974 | |
| Niobrara- Mowry | Powder River | MIxed Shale & Chalk | 8,761 | |
| Excello-Mulky | Cherokee, Forest City | Shale | 8,304 | |
| Delaware | Permian | Mixed Shale & Limestone | 8,034 | |
| Wolfcamp | Permian | Mixed Shale & Limestone | 7,039 | |
| Spraberry | Permian | Mixed shale, fine-grained sandstone, and limestone | 6,282 | |
| Bone Spring | Permian | Mixed Shale & Limestone-Siltstone-Sandstone | 6,070 | |
| Fayetteville | Arkoma | Shale | 5,853 | |
| Floyd-Neal | Black Warrior | Shale | 5,191 | |
| Monterey | Los Angeles Basin, Santa Maria Basin, Snt Maria-Ventura OS, Ventura Basin | Shale | 4,905 | |
| Woodford | Anadarko, Ardmore | Shale | 4,552 | |
| Abo-Yeso | Permian | Mixed Shale & Limestone-Siltstone-Sandstone | 4,472 | |
| Mancos | Uinta | Shale | 3,884 | |
| Heath | Williston | Shale | 3,267 | |
| Hermosa | Pardox | Shale | 2,978 | |
| Woodford-Caney | Arkoma | Shale | 2,893 | |
| Monterey-Temblor | San Joaquin Basin | Shale | 2,542 | |
| Cody | Montana Thrust Belt | Shale | 2,265 | |
| Conasauga | Valley and Ridge | Shale | 2,224 | |
| Chattanooga | Appalachian, Black Warrior | Shale | 2,144 | |
| Pierre -Niobrara | Raton | Shale | 2,120 | |
| Lewis | San Juan | Shale | 1,557 | |
| Floyd-Chattanooga | Black Warrior | Shale | 1,467 | |
| Manning Canyon | Uinta | Shale | 1,370 | |
| Bend | Palo Duro | Shale | 1,263 | |
| Mowry | Big Horn | Shale | 1,010 | |
| Glorieta-Yeso | Permian | Mixed Shale & Limestone-Siltstone-Sandstone | 795 |
08 / 09
What the pipeline map means for your gas bill
A commercial gas bill is the sum of the steps on this map. Each one is billed differently, and each is a place where charges go wrong.
- Commodity. The gas itself, usually priced from Henry Hub or a regional index, plus or minus a fixed adder in your supply contract. Check that each invoice uses the index and adder the contract names.
- Basis and interstate transportation. Moving gas from a production basin to your region costs the pipeline’s tariff rate, set by the Federal Energy Regulatory Commission for interstate lines. Constrained routes show up as a higher basis at your regional pricing point, especially in winter.
- Storage and balancing. Utilities and marketers hold storage capacity and pass its cost through in balancing, storage or swing charges. Imbalance penalties can be large in a cold snap.
- Local distribution. Your utility takes gas off the transmission line at a citygate and delivers it through its own mains. Its tariff sets customer, delivery and demand charges, and the rate class you are on decides which apply.
A natural gas bill audit tests the steps your bills carry against the utility’s tariff and your supply contract: rate class, sales or transport service, heat-content and pressure factors, demand and contract quantities, and balancing and penalty charges. See natural gas bill audits, our gas capacity outlooks for 48 metros and the billing error library.
Sources and method
- Interstate and intrastate pipelines: EIA, Natural Gas Interstate and Intrastate Pipelines layer (U.S. Energy Atlas, layer last edited December 2025), 32,436 line segments from 229 operators. Routes were generalized to about 200 meters for the web.
- Canadian pipelines: Canada Energy Regulator, CER-regulated pipeline systems (natural gas systems only; provincially regulated lines are not shown).
- Shale and tight plays: EIA, Tight Oil and Shale Gas Plays, Lower 48 States.
- Underground storage: EIA-191 Monthly Underground Gas Storage Report field data, December 2020 (reservoirs combined by field).
- Processing plants: EIA-757 Natural Gas Processing Plant Survey, 2017.
- Trading hubs: EIA natural gas trading hubs (pricing points), 2020.
- Border crossings: EIA natural gas border crossings, with 2017 capacities from DOE and FERC filings.
- Nuclear plants: EIA-860M power plant data, February 2025.
- LNG terminals: U.S. status and capacity as of October 2026 from our U.S. LNG exports outlook (EIA liquefaction data and operator announcements); Canadian and Mexican terminals from operator announcements. Locations from EIA where available.
- Basemap: Natural Earth 1:50 million states, provinces, countries and lakes (public domain).
Pipeline miles are measured along the generalized routes on the WGS 84 ellipsoid and assigned to states by clipping to state outlines, so they are approximate; offshore Gulf of Mexico lines count toward the national total but not to a state. EIA’s layer covers major transmission lines, about 223,600 miles. The Pipeline and Hazardous Materials Safety Administration counts 298,851 miles of gas transmission pipe and 2.35 million miles of distribution mains and service lines (2023), so local distribution systems and gathering lines are not on this map. Alaska and Hawaii have little or no mapped transmission pipeline. The map is for reference only, not for locating pipe: call 811 before any excavation.
09 / 09
Questions about the pipeline map
How many miles of natural gas pipeline are in the United States?
About 299,000 miles of natural gas transmission pipeline and 2.35 million miles of distribution mains and service lines, according to the Pipeline and Hazardous Materials Safety Administration (2023). The EIA layer on this map covers the major transmission lines, about 223,600 miles.
Which state has the most natural gas pipelines?
Texas, with about 52,331 miles of mapped transmission pipeline from 62 operators, followed by Oklahoma (18,580 miles) and Louisiana (17,387 miles).
What is the difference between interstate and intrastate pipelines?
Interstate pipelines cross state lines, and the Federal Energy Regulatory Commission approves their routes and sets their transportation rates. Intrastate pipelines stay within one state and are regulated by that state, for example by the Railroad Commission of Texas. On the map, interstate lines are blue and intrastate lines are orange.
Where is Henry Hub?
Henry Hub is a pipeline interconnection in Erath, Louisiana, where about a dozen interstate and intrastate pipelines meet. It is the delivery point for the NYMEX natural gas futures contract and the benchmark most North American gas is priced against.
How do I find which pipeline serves my facility?
Most facilities do not connect to a transmission pipeline directly: the local utility takes gas off one or more interstate pipelines at its citygate and delivers it. Click your state on the map to see its main operators, then check your supply contract or utility tariff for the pipeline and pricing point named there. We identify both as part of a natural gas bill audit.
How current is this map?
The pipeline layer is EIA’s current edition (last edited December 2025), and LNG terminal status is as of October 2026. Storage, processing and border crossing layers use EIA’s most recent public releases, dated 2017 to 2020, so newer facilities may be missing. We rebuild the map when EIA publishes new layers.
Find out what your bills should have cost.
Send one recent bill per site, or a list of accounts. We tell you where we expect findings before you sign anything. No upfront audit fee.