| Alliance Lift (natural gas) | Eagleridge Gu, LLC | Natural gas | TX | |
| Alliance Refinery | Shell Pipeline Corp | Crude oil | | |
| Alliance System (RRC 00352311) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352312) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352354) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352357) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352358) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352359) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352360) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 00352362) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 632854) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 960258) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 960265) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 960446) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 960545) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 960850) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (RRC 961037) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alliance System (natural gas) | Enlink Midstream Services, LLC | Natural gas | TX | |
| Alligator Bayou | Layton Energy Inc. | Natural gas | TX | |
| Alligator Bayou Gas Pipeline | Kingwood Exploration LLC | Natural gas | TX | |
| Alligator Point Flow Line | SDG Operating Company, Inc | Natural gas | TX | |
| Allspark System | Hve Maintenance LLC | Natural gas | TX | |
| Alon Bakersfield Property | Alon Bakersfield Property, Inc. | Refined products | CA | |
| Alon Natural Gas | Alon Usa, LP | Natural gas | TX | |
| Alon USA Krotz Springs Refinery | Alon USA Krotz Springs Refinery, Inc | NGL | LA | |
| Alon USA Krotz Springs Refinery (crude oil) | Alon USA Krotz Springs Refinery, Inc | Crude oil | LA | |
| Alon USA Krotz Springs Refinery (refined products) | Alon USA Krotz Springs Refinery, Inc | Refined products | LA | |
| Alon Usa (crude oil) | Alon Usa, LP | Crude oil | TX | |
| Alon Usa (refined products) | Alon Usa, LP | Refined products | TX | |
| Alon Usa Alon Usa DFW | Alon Usa, LP | Refined products | TX | |
| Alon Usa DFW | Alon Usa, LP | Refined products | TX | |
| Alpha Gathering | Plains Pipeline, L.p. | Crude oil | TX | |
| Alpha Lynch Station | Plains Pipeline, L.p. | Natural gas | NM | |
| Alpine | SCM Ops, LLC | NGL | TX | |
| Alpine Oil Pipeline | Alpine Transportation Co. | Crude oil | | |
| Alpine Silica Monahans | WTG Gas Transmission Company | Natural gas | TX | |
| Alpine Transportation | Alpine Transportation Co. | Crude oil | AK | |
| Alta Mesa System | Varas Energy Operating Company | Natural gas | TX | |
| Altagas Facilities (us) (NGL) | Altagas Facilities (u.s.) Inc., Altagas Facilities (us) Inc | NGL | WA | |
| Altus Midstream Gathering (RRC 00227257) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00343352) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00375184) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00375818) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376802) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376803) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376804) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376805) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376808) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376809) | Kinetik Holdings, LP | Natural gas | TX | |
| Altus Midstream Gathering (RRC 00376810) | Kinetik Holdings, LP | Natural gas | TX | |