List of the Largest Oil/Gas Exploration Companies

Name	Sector	Revenue $mlns	M&A Activity	Last 5 Years
Ecopetrol NYSE : EC Bogota, Colombia website	Oil/Gas Exploration	143,189,602	2	2	-
Sinopec Hong Kong (SEHK) : 0386 Beijing, China website	Oil/Gas Exploration	482,258	2	2	-
China National Petroleum Corp. (CNPC) Private Beijing, China website	Oil/Gas Exploration	408,630	1	1	-
PEC Acquired Alliance Energy Services 2025-05-07 $160M Singapore, Singapore website	Oil/Gas Exploration	348,290	-	-	-
ExxonMobil NYSE : XOM Spring, Texas, United States website	Oil/Gas Exploration	339,247	17	10	7
Oando JSE Limited : OAO Lagos, Nigeria website	Oil/Gas Exploration	307,644	2	-	2
Shell NYSE : SHEL London, United Kingdom website	Oil/Gas Exploration	284,312	31	12	19
TotalEnergies NYSE : TTE Courbevoie, France website	Oil/Gas Exploration	195,610	35	23	12
Chevron NYSE : CVX San Ramon, California, United States website	Oil/Gas Exploration	193,414	33	19	14
BP NYSE : BP London, United Kingdom website	Oil/Gas Exploration	189,185	25	9	16
Rosneft Oil Company Public Moscow, Russia website	Oil/Gas Exploration	126,727	2	2	-
Pemex Private Mexico City, Mexico website	Oil/Gas Exploration	125,195	1	1	-
PDVSA Private Caracas, Venezuela website	Oil/Gas Exploration	124,459	-	-	-
Equinor NYSE : EQNR Stavanger, Norway website	Oil/Gas Exploration	102,502	7	5	2
ENEOS Tokyo (TSE) : 5020 Tokyo, Japan website	Oil/Gas Exploration	101,992	-	-	-
Eni The Milan Stock Exchange : ENI Rome, Italy website	Oil/Gas Exploration	100,270	4	4	-

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Largest Oil/Gas Exploration Companies