Gulf Refining Company vs Southwestern Energy Production Company

Side-by-side comparison of two oil and gas operators in AL,AR,IL,KY,LA,MI,MS and AL,AR,CA,CO,IL,KS,KY,LA,MI,MO,MS,MT,ND,NM,NY,OH,OK,PA,TX,UT,WV,WY. Drawn from public well data and state-regulator production filings.

Important — Public-Data Disclaimer. The information shown on this page is sourced exclusively from publicly available oil and gas regulatory records (Texas Railroad Commission, Oklahoma Corporation Commission, and aggregated public well data). Valor is presenting these public records side-by-side as an informational convenience only.

Gulf Refining Company

AL,AR,IL,KY,LA,MI,MS · 1,882 wells on file

Southwestern Energy Production Company

AL,AR,CA,CO,IL,KS,KY,LA,MI,MO,MS,MT,ND,NM,NY,OH,OK,PA,TX,UT,WV,WY · 1,815 wells on file

Side-by-Side Statistics

MetricGulf Refining CompanySouthwestern Energy Production Company
Total wells1,8821,815
Wells producing (any time)13292
Permits filed (last 24 months)034
Most recent permit date2014-12-092025-04-07
Most recent spud date1956-04-292026-03-13
Average lateral length (ft)1,8376,194
Top formationIllinois BasinMarcellus
Top countyUnionSusquehanna
States operating inAL,AR,IL,KY,LA,MI,MSAL,AR,CA,CO,IL,KS,KY,LA,MI,MO,MS,MT,ND,NM,NY,OH,OK,PA,TX,UT,WV,WY
Last-12mo oil production (BBL)0263,095
Last-12mo gas production (Mcf)023,589,069

Shared Territory

Both operators target these formations / plays:

Illinois Basin

Per-Operator Top Counties & Formations

Gulf Refining Company

Counties: Union (251) · Clinton (169) · Jefferson (144) · Clay (138) · White (125)

Formations: Illinois Basin (1,015) · Arkla Basin (281) · Antrim (237) · Gulf Oil (131) · Wildcat - Wildcat (62)

Southwestern Energy Production Company

Counties: Susquehanna (275) · Moffat (107) · Bradford (107) · Marion (85) · Converse (82)

Formations: Marcellus (640) · Chautauqua Platform (112) · Niobrara- Mowry (98) · Barnett (82) · Illinois Basin (68)

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