| Carthage Booster Station | Compressor station | Texas County, OK | DCP Operating Company, LP | |
| Cashion Compressor Station | Compressor station | Kingfisher County, OK | Panhandle Eastern Pipe Line Company, LP | |
| Cashion North Booster Station (waswo) | Compressor station | Logan County, OK | Superior Midstream, LLC | |
| Cashion Plant | Gas processing plant | Logan County, OK | Superior Midstream, LLC, Superior Pipeline Company L.l.c. | In service |
| Casper Crude to Rail Terminal | Terminal | WY | | |
| Casper Plant | Gas processing plant | Natrona County, WY | Tallgrass Midstream LLC | In service |
| Castle East Compressor Station | Compressor station | Okfuskee County, OK | Enerfin Gathering-East LLC | |
| Castle West Compressor Station | Compressor station | Okfuskee County, OK | Enerfin Gathering-East LLC | |
| Castleberry Plant | Gas processing plant | Conecuh County, AL | Gas Processors Inc | In service |
| Cat 3 Compressor Station | Compressor station | NM | Bta Oil Producers, LLC | |
| Cat Portable Plant 2741 | Gas processing plant | Mccurtain County, OK | Cummins Construction Co Inc | |
| Catalyst Regeneration Plant | Gas processing plant | Pittsburg County, OK | Eurecat Us Inc | |
| Catcher Ranch Gas Plant | Gas processing plant | Pittsburg County, OK | Markwest Oklahoma Gas Company, LLC | |
| Cato Salisbury terminal | Terminal | MD | Cato Inc | |
| Caymus Plant | Gas processing plant | Pecos County, TX | | |
| Cecilia Storage Field | Underground storage | Hardin County, KY | City Of Elizabethtown Natural Gas | In service |
| Cedar Booster Station | Compressor station | Major County, OK | DCP Operating Company, LP | |
| Cedar Canyon 28 Compression Station | Compressor station | NM | Oxy USA Inc | |
| Cedar Canyon Compressor Station | Compressor station | NM | Enterprise Products Operating LP | |
| Cedar Compressor Station | Compressor station | Washita County, OK | Diversified Production | |
| Cedar Hill Gas Plant | Gas processing plant | Garza County, TX | Davis Gas Processing | In service |
| Cedar Lake Compressor Station | Compressor station | Caddo County, OK | ET Gathering & Processing, LLC | |
| Cedar Midstream, LLC, Limestone Hill Gas Plant | Compressor station | WV | | |
| Cedar Rapids Plant 1 | Gas processing plant | Carter County, OK | Schiralli Construction Corp | |
| Cemetery Road Compressor Station | Compressor station | Beckham County, OK | Palo Duro G And P Oklahoma LP | |
| Cenex PL Logan terminal | Terminal | MT | Cenex Pipeline LLC | |
| Cenex PL Missoula terminal | Terminal | MT | Cenex Pipeline LLC | |
| Centane Rail Loading Terminal | Terminal | NM | | |
| Centennial Gas Plant | Gas processing plant | Weld County, CO | Sterling Energy Investments, LLC | In service |
| Center | Underground storage | Metcalfe County, KY | Louisville Gas & Electric Co | In service |
| Centrahoma Compressor Station | Compressor station | Coal County, OK | VM Arkoma Stack, LLC | |
| Central Charlton 1 | Underground storage | Otsego County, MI | ANR Pipeline Company | In service |
| Central High Booster Station | Compressor station | Stephens County, OK | Bounty Transfer LLC | |
| Centralia | Underground storage | Marion County, IL | Ameren Illinois Company | In service |
| Certarus USA Ltd/cng Prodcution Facility | Gas processing plant | Bradford County, PA | | |
| Chaco Gas Plant | Gas processing plant | San Juan County, NM | Enterprise Field Services LLC, Enterprise Products Operating LP | In service |
| Chalk Bluff Gas Plant | Gas processing plant | WY | Roaring Fork Midstream, LLC | |
| Chalk Creek | Underground storage | Summit County, UT | Questar Pipeline | In service |
| Champion Compressor Station | Compressor station | Love County, OK | Xto Energy Inc | |
| Chaney Dell Plant | Gas processing plant | Major County, OK | Targa Pipeline Midcontinent Westok LLC, Tpl Mid-Continent Westok, LLC | In service |
| Chapel Hill Gas Plant | Gas processing plant | Smith County, TX | American Midstream | In service |
| Chatom Plant | Gas processing plant | Washington County, AL | American Midstream Chatom, LLC | In service |
| Chattanooga Gas Chattanooga LNG | LNG peak-shaving or storage | TN | Chattanooga Gas Co | In service |
| Cheboygan Us Oil terminal | Terminal | MI | Us Venture Inc | |
| Chemoil Terminal Carson Tank Farm | Terminal | CA | Chemoil Terminal Corp | |
| Cheney Natural Gas Processing | Gas processing plant | Kingman County, KS | ONEOK Inc. | In service |
| Cherokee Compressor Station | Compressor station | Alfalfa County, OK | ET Gathering & Processing, LLC | |
| Cherry Compressor Station | Compressor station | Dewey County, OK | Enlink Midstream Services, LLC | |
| Chester Plant | Gas processing plant | Major County, OK | Targa, Targa Pipeline Midcontinent Westok LLC | In service |
| Chevron Buckeye CO2 Plant | Gas processing plant | NM | MorningStar Operating LLC | |