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 Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
91 ZaZa Energy Corp United States US Energy US Oil & Gas E&P
92 XCana Petroleum Corp United States US Energy US Oil & Gas E&P
93 Southern Realty Co. United States US Energy US Oil & Gas E&P
94 Axis Petroleum Co. United States US Energy US Oil & Gas E&P
95 AXP Energy Ltd United States US Energy US Oil & Gas E&P
96 Starlight Energy Corp United States US Energy US Oil & Gas E&P
97 New Source Energy Partners LP United States US Energy US Oil & Gas E&P
98 Osage Exploration and Development, Inc. United States US Energy US Oil & Gas E&P
99 Baron Energy, Inc. United States US Energy US Oil & Gas E&P
100 AER Energy Resources, Inc. United States US Energy US Oil & Gas E&P
101 American Energy Development Corp United States US Energy US Oil & Gas E&P
102 Arete Industries, Inc. United States US Energy US Oil & Gas E&P
103 Torchlight Energy Resources, Inc. United States US Energy US Oil & Gas E&P
104 Diversified Gas & Oil plc United States US Energy US Oil & Gas E&P
105 Trinity Petroleum Trust United States US Energy US Oil & Gas E&P
106 QEP Resources, Inc. United States US Energy US Oil & Gas E&P
107 Freedom Oil and Gas Ltd United States US Energy US Oil & Gas E&P
108 Fremont Petroleum Corporation Ltd United States US Energy US Oil & Gas E&P
109 Alamo Energy Corp United States US Energy US Oil & Gas E&P
110 Gulfport Energy Corporation United States US Energy US Oil & Gas E&P
111 EGPI Firecreek, Inc. United States US Energy US Oil & Gas E&P
112 Energy Revenue America, Inc. United States US Energy US Oil & Gas E&P
113 Vitesse Energy Inc. United States US Energy US Oil & Gas E&P
114 Eon NRG Limited United States US Energy US Oil & Gas E&P
115 Sitio Royalties Corp. United States US Energy US Oil & Gas E&P
116 Permian Resources Corp United States US Energy US Oil & Gas E&P
117 Black Rock Petroleum Company United States US Energy US Oil & Gas E&P
118 Granite Ridge Resources, Inc. United States US Energy US Oil & Gas E&P
119 Diversified Energy Company PLC United States US Energy US Oil & Gas E&P
120 Crescent Energy Company United States US Energy US Oil & Gas E&P

Top Oil & Gas E&P Companies from the United States as of Jul. 01, 2025

91. ZaZa Energy Corp

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

92. XCana Petroleum Corp

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

93. Southern Realty Co.

Company Profile: Southern Realty Co.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

94. Axis Petroleum Co.

Company Profile: Axis Petroleum Co.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

95. AXP Energy Ltd

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

96. Starlight Energy Corp

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

97. New Source Energy Partners LP

Company Profile: New Source Energy Partners LP
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

98. Osage Exploration and Development, Inc.

Company Profile: Osage Exploration and Development, Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

99. Baron Energy, Inc.

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

100. AER Energy Resources, Inc.

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

101. American Energy Development Corp

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

102. Arete Industries, Inc.

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

103. Torchlight Energy Resources, Inc.

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

104. Diversified Gas & Oil plc

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

105. Trinity Petroleum Trust

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

106. QEP Resources, Inc.

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

107. Freedom Oil and Gas Ltd

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

108. Fremont Petroleum Corporation Ltd

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

109. Alamo Energy Corp

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

110. Gulfport Energy Corporation

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

111. EGPI Firecreek, Inc.

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

112. Energy Revenue America, Inc.

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

113. Vitesse Energy Inc.

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

114. Eon NRG Limited

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

115. Sitio Royalties Corp.

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

116. Permian Resources Corp

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

117. Black Rock Petroleum Company

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

118. Granite Ridge Resources, Inc.

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

119. Diversified Energy Company PLC

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

120. Crescent Energy Company

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

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