| 1730 W Reno Oklahoma City Plant | Gas processing plant | Oklahoma County, OK | W And W Afco Steel LLC | |
| 29-6 #4 Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| 2c90 Central Compressor Station | Compressor station | NM | Hilcorp Energy Company | |
| 3 Gate Booster Station | Compressor station | Hughes County, OK | VM Arkoma Stack, LLC | |
| 3 Tubs Compressor Station | Compressor station | Texas County, OK | Scout Energy Management LLC | |
| 30-30 Gas Plant | Gas processing plant | Yoakum County, TX | | |
| 31-6 Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| 3101 N E 4th (new Plant) | Gas processing plant | Oklahoma County, OK | Schwarz Asphalt LLC | |
| 32-8 #2 Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| 32-9 Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| 50 Buttes Processing Facility | Gas processing plant | Campbell County, WY | Thunder Creek Gas Services, LLC | In service |
| 6a-27 Lateral | Compressor station | NM | Hilcorp Energy Company | |
| 77 Compressor Station | Compressor station | Seminole County, OK | Petrolink Energy LLC | |
| A -14 C.s. | Compressor station | NM | Southern Union Gas Services, LTD | |
| A C West Compressor Station | Compressor station | Caddo County, OK | Bounty Transfer LLC | |
| A G Equipment Albany Plant | Gas processing plant | Tulsa County, OK | A G Equipment Company | |
| A G Equipment Hemlock Plant | Gas processing plant | Tulsa County, OK | A G Equipment Company | |
| A-1 Screw Compressor | Compressor station | NM | High River Resources Operating LLC | |
| A-3 & A-6 Screw Compressors | Compressor station | NM | High River Resources Operating LLC | |
| Aaa Plant | Gas processing plant | Cleveland County, OK | Aaa Fiberglass Services LLC | |
| Abc Gulf Coast Terminal | Terminal | TX | Abc Gulf Coast Terminal | |
| Able Compressor Station | Compressor station | Coal County, OK | TPL Arkoma Holdings LLC | |
| Accident | Underground storage | Garrett County, MD | Texas Eastern Transmission, LP | In service |
| Ace Energy Hall & Muska terminal | Terminal | CT | Ace Energy LLC | |
| Achilles Compressor Station | Compressor station | Lincoln County, OK | Petrolink Energy LLC | |
| Ada | Underground storage | Pontotoc County, OK | Enable Gas Transmission, LLC | In service |
| Ada Molding Plant | Gas processing plant | Pontotoc County, OK | Flex N Gate Oklahoma LLC | |
| Ada Plant | Gas processing plant | Pontotoc County, OK | Amrize Cement Inc. | |
| Ada Storage Compressor Station | Compressor station | Pontotoc County, OK | Enable Gas Transmission, LLC | |
| Adak Petroleum Anchorage terminal | Terminal | AK | Adak Petroleum LLC | |
| Adelphia Gateway Llc/marcus Hook Compressor Sta | Compressor station | Delaware County, PA | Adelphia Gateway, LLC | |
| Adelphia Gateway Llc/quakertown Compressor Sta | Compressor station | Bucks County, PA | Adelphia Gateway, LLC | |
| Adm Portable Plant 2 | Gas processing plant | Murray County, OK | Seal Masters Inc | |
| Adobe C.S. | Compressor station | NM | Southern Union Gas Services, LTD | |
| Adrian | Underground storage | Steuben County, NY | Arlington Gas Storage Company LLC | In service |
| Afton Compressor Station | Compressor station | NM | El Paso Natural Gas Company, L.L.C. | |
| Agave Atoka 003 | Compressor station | NM | Lucid Artesia Company | |
| Agave Bitter Lake CS | Compressor station | NM | Lucid Artesia Company | |
| Agave Energy Larue CS | Compressor station | NM | Lucid Artesia Company | |
| Agave Energy Lisa CS | Compressor station | NM | Lucid Artesia Company | |
| Agave Energy Penasco CS | Compressor station | NM | Lucid Artesia Company | |
| Agave Red Bluff #1 CS | Compressor station | NM | Lucid Artesia Company | |
| Agave Red Bluff #2 CS | Compressor station | NM | Lucid Artesia Company | |
| Agave Red Bluff #3 CS | Compressor station | NM | Lucid Artesia Company | |
| Agnew Crude Terminal | Terminal | OK | | |
| Air Conditioning Manufacturing Plant | Gas processing plant | Oklahoma County, OK | International Envir Corp | |
| Ajax Gas Plant | Gas processing plant | Wheeler County, TX | | |
| Ajax Plant | Gas processing plant | Wheeler County, TX | Enbridge Pipelines (texas Gathering) Inc. | In service |
| Alabama Bulk Terminal | Terminal | AL | Alabama Bulk Terminal | |
| Alabaster Booster Station | Compressor station | Woodward County, OK | DCP Operating Company, LP | |