United States

Top 145 largest US Companies in the Oil & Gas E&P industry by Market Cap

This is the list of the largest public listed companies in the Oil & Gas E&P industry from the United States by market capitalization with links to their reference stock.

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Top Oil & Gas E&P Companies from the United States as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
121 Gulfport Energy Corporation United States US Energy US Oil & Gas E&P
122 Diversified Gas & Oil plc United States US Energy US Oil & Gas E&P
123 EGPI Firecreek, Inc. United States US Energy US Oil & Gas E&P
124 Energy Revenue America, Inc. United States US Energy US Oil & Gas E&P
125 Torchlight Energy Resources, Inc. United States US Energy US Oil & Gas E&P
126 Eon NRG Limited United States US Energy US Oil & Gas E&P
127 Trinity Petroleum Trust United States US Energy US Oil & Gas E&P
128 Vitesse Energy Inc. United States US Energy US Oil & Gas E&P
129 Black Rock Petroleum Company United States US Energy US Oil & Gas E&P
130 Sitio Royalties Corp. United States US Energy US Oil & Gas E&P
131 Permian Resources Corp United States US Energy US Oil & Gas E&P
132 Granite Ridge Resources, Inc. United States US Energy US Oil & Gas E&P
133 Diversified Energy Company PLC United States US Energy US Oil & Gas E&P
134 Crescent Energy Company United States US Energy US Oil & Gas E&P
135 Universal Energy Corp United States US Energy US Oil & Gas E&P
136 Mountainview Energy Ltd United States US Energy US Oil & Gas E&P
137 Civitas Resources, Inc. United States US Energy US Oil & Gas E&P
138 Quest Oil Corp United States US Energy US Oil & Gas E&P
139 Santa Fe Petroleum, Inc. United States US Energy US Oil & Gas E&P
140 Glen Rose Petroleum Corp United States US Energy US Oil & Gas E&P
141 Index Oil & Gas, Inc. United States US Energy US Oil & Gas E&P
142 Silver Star Energy, Inc. United States US Energy US Oil & Gas E&P
143 Soligen Technologies, Inc. United States US Energy US Oil & Gas E&P
144 Hybrid Energy Holdings, Inc. United States US Energy US Oil & Gas E&P
145 Standard Energy Corp United States US Energy US Oil & Gas E&P

Top Oil & Gas E&P Companies from the United States as of Jan. 01, 2026

121. Gulfport Energy Corporation

Company Profile: Gulfport Energy Corporation
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

122. Diversified Gas & Oil plc

Company Profile: Diversified Gas & Oil plc
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

123. EGPI Firecreek, Inc.

Company Profile: EGPI Firecreek, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

124. Energy Revenue America, Inc.

Company Profile: Energy Revenue America, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

125. Torchlight Energy Resources, Inc.

Company Profile: Torchlight Energy Resources, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

126. Eon NRG Limited

Company Profile: Eon NRG Limited
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

127. Trinity Petroleum Trust

Company Profile: Trinity Petroleum Trust
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

128. Vitesse Energy Inc.

Company Profile: Vitesse Energy Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

129. Black Rock Petroleum Company

Company Profile: Black Rock Petroleum Company
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

130. Sitio Royalties Corp.

Company Profile: Sitio Royalties Corp.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

131. Permian Resources Corp

Company Profile: Permian Resources Corp
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

132. Granite Ridge Resources, Inc.

Company Profile: Granite Ridge Resources, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

133. Diversified Energy Company PLC

Company Profile: Diversified Energy Company PLC
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

134. Crescent Energy Company

Company Profile: Crescent Energy Company
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

135. Universal Energy Corp

Company Profile: Universal Energy Corp
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

136. Mountainview Energy Ltd

Company Profile: Mountainview Energy Ltd
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

137. Civitas Resources, Inc.

Company Profile: Civitas Resources, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

138. Quest Oil Corp

Company Profile: Quest Oil Corp
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

139. Santa Fe Petroleum, Inc.

Company Profile: Santa Fe Petroleum, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

140. Glen Rose Petroleum Corp

Company Profile: Glen Rose Petroleum Corp
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

141. Index Oil & Gas, Inc.

Company Profile: Index Oil & Gas, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

142. Silver Star Energy, Inc.

Company Profile: Silver Star Energy, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

143. Soligen Technologies, Inc.

Company Profile: Soligen Technologies, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

144. Hybrid Energy Holdings, Inc.

Company Profile: Hybrid Energy Holdings, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

145. Standard Energy Corp

Company Profile: Standard Energy Corp
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

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