{"index":"DCGI midstream operator registry","license":"CC BY 4.0","note":"Parent midstream companies mapped to the FERC pipeline entities they operate, with live segment counts from EIA pipeline geodata. The gas behind the grid.","ok":true,"operators":[{"hq":"Houston / Calgary","key":"enbridge","matched_entities":["Algonquin Gas Trans Co","ENBRIDGE","Enbridge Pipelines (AlaTenn)","Enbridge Pipelines (East Texas)","Enbridge Pipelines (UTOS)","Maritimes & Northeast PL US","PNGTS/Maritimes & Northeast","SPECTRA ENERGY","Texas Eastern Trans Co"],"name":"Enbridge (incl. Texas Eastern)","note":"Texas Eastern (TETCO) is a key Gulf -> Northeast corridor.","pipeline_segments":30,"tracked":true,"type":"Interstate transmission"},{"hq":"Houston, TX","key":"kinder_morgan","matched_entities":["Colorado Interstate Gas Co","East Tennessee Gas Co","El Paso Natural Gas Co","KINDER MORGAN","Kinder Morgan Louisiana Pipeline","Kinder Morgan Texas Pipeline Co","Mojave Pipeline Co","Sierrita Gas Pipeline","Southern Natural Gas Co","Tennessee Gas Pipeline","Wyoming Interstate PL Co"],"name":"Kinder Morgan","note":"~66k mi; largest US natural-gas transporter.","pipeline_segments":21,"tracked":true,"type":"Interstate transmission"},{"hq":"Tulsa, OK","key":"oneok","matched_entities":["Guardian Pipeline Co","ONEOK","ONEOK Gas Transmission LLC","ONEOK Gas Transportation LLC","ONEOK Westex Pipeline","Roadrunner","Roadrunner Eastbound","Viking Gas Transmission Co"],"name":"ONEOK","note":"Mid-continent NGL + gas (incl. Magellan assets).","pipeline_segments":15,"tracked":true,"type":"Gathering + transmission"},{"hq":"Dallas, TX","key":"energy_transfer","matched_entities":["ENERGY TRANSFER","Energy Transfer","Florida Gas Trans Co","Midcontinent Express Pipeline","Panhandle Eastern PL Co","Rover Pipeline","Sea Robin Pipeline","Transwestern Gas Co","Trunkline Gas Co"],"name":"Energy Transfer","note":"~125k mi; one of the largest US midstream systems (Gulf, Midcon, FL).","pipeline_segments":12,"tracked":true,"type":"Interstate transmission"},{"hq":"Calgary, AB","key":"tc_energy","matched_entities":["ANR Pipeline Co","Columbia Gas Trans Co","Columbia Gulf Pipeline","Crossroads Pipeline Co","Great Lakes Gas Trans Co","Portland Natural Gas PL","TRANSCANADA"],"name":"TC Energy","note":"Columbia + ANR; major Appalachia / Midwest takeaway.","pipeline_segments":9,"tracked":true,"type":"Interstate transmission"},{"hq":"Tulsa, OK","key":"williams","matched_entities":["Northwest Pipeline","TransColorado Gas Trans Co","Transcontinental Gas PL","WILLIAMS"],"name":"Williams (Transco)","note":"Transco is the largest-volume US pipeline (Gulf -> Northeast).","pipeline_segments":7,"tracked":true,"type":"Interstate transmission"},{"hq":"Lakewood, CO","key":"tallgrass","matched_entities":["Rockies Express (Echo Springs Lateral)","Rockies Express (Entrega)","Rockies Express Pipeline","TALLGRASS ENERGY","Trailblazer Pipeline Co"],"name":"Tallgrass Energy","note":"Rockies Express (REX): bidirectional Rockies / Appalachia.","pipeline_segments":6,"tracked":true,"type":"Interstate transmission"},{"hq":"Des Moines, IA","key":"berkshire","matched_entities":["Cove Point Pipeline","Dominion Transmission Co","East Ohio Gas Co","Kern River Gas Trans Co","Northern Natural Gas Co"],"name":"Berkshire Hathaway Energy (Northern Natural / Eastern Gas)","note":"Northern Natural (largest by mileage) + Eastern Gas (ex-Dominion).","pipeline_segments":5,"tracked":true,"type":"Interstate transmission"},{"hq":"Houston, TX","key":"boardwalk","matched_entities":["Gulf South Pipeline Co","Texas Gas Transmission Co"],"name":"Boardwalk Pipelines","note":"Gulf South + Texas Gas; Gulf Coast / Southeast.","pipeline_segments":2,"tracked":true,"type":"Interstate transmission"},{"hq":"Detroit, MI","key":"dt_midstream","matched_entities":["Millennium Pipeline Co","Vector Pipeline Co"],"name":"DT Midstream","note":"Appalachia gathering + interstate.","pipeline_segments":2,"tracked":true,"type":"Transmission + gathering"},{"hq":"Las Vegas, NV","key":"southwest_gas","matched_entities":["Paiute Pipeline Co","Southwest Gas Corp"],"name":"Southwest Gas","note":"AZ / NV / CA distribution; Paiute interstate feeds Nevada.","pipeline_segments":2,"tracked":true,"type":"Local distribution (LDC)"},{"hq":"St. Louis, MO","key":"spire","matched_entities":["Spire St. Louis Pipeline"],"name":"Spire","note":"Midwest / Gulf distribution + Spire STL pipeline.","pipeline_segments":1,"tracked":true,"type":"LDC + transmission"}],"total_distinct_operators_tracked":362}