United States

Top 310 largest US Companies in the Energy sector by Market Cap

This is the list of the largest public listed companies in the Energy sector from the United States by market capitalization with links to their reference stock and industry.

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Top Energy Companies from the United States as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
211 Blue Dolphin Energy Co. $23.9 M United States US Energy US Oil & Gas Refining & Marketing
212 Battalion Oil Corporation $23.2 M United States US Energy US Oil & Gas E&P
213 BP Prudhoe Bay Royalty Trust $10.7 M United States US Energy US Oil & Gas Refining & Marketing
214 Marine Petroleum Trust $9.5 M United States US Energy US Oil & Gas Equipment & Services
215 Blue Water Petroleum Corp $8.8 M United States US Energy US Oil & Gas E&P
216 SMG Industries, Inc. $294,860 United States US Energy US Oil & Gas Equipment & Services
217 Whiting Petroleum Corporation United States US Energy US Oil & Gas E&P
218 Laredo Petroleum, Inc. United States US Energy US Oil & Gas E&P
219 HighPoint Resources Corporation United States US Energy US Oil & Gas E&P
220 Cimarex Energy Co. United States US Energy US Oil & Gas E&P
221 Sundance Energy Inc. United States US Energy US Oil & Gas E&P
222 El Paso Electric Co United States US Energy US Oil & Gas Midstream
223 Kinetik Holdings Inc. United States US Energy US Oil & Gas Midstream
224 OMDA Oil and Gas, Inc. United States US Energy US Oil & Gas E&P
225 Standard Energy Corp United States US Energy US Oil & Gas E&P
226 Hybrid Energy Holdings, Inc. United States US Energy US Oil & Gas E&P
227 Noble Midstream Partners LP United States US Energy US Oil & Gas Midstream
228 Soligen Technologies, Inc. United States US Energy US Oil & Gas E&P
229 Silver Star Energy, Inc. United States US Energy US Oil & Gas E&P
230 Index Oil & Gas, Inc. United States US Energy US Oil & Gas E&P
231 Glen Rose Petroleum Corp United States US Energy US Oil & Gas E&P
232 Santa Fe Petroleum, Inc. United States US Energy US Oil & Gas E&P
233 Quest Oil Corp United States US Energy US Oil & Gas E&P
234 Mountainview Energy Ltd United States US Energy US Oil & Gas E&P
235 Universal Energy Corp United States US Energy US Oil & Gas E&P
236 Black Rock Petroleum Company United States US Energy US Oil & Gas E&P
237 Eon NRG Limited United States US Energy US Oil & Gas E&P
238 Energy Revenue America, Inc. United States US Energy US Oil & Gas E&P
239 Legend Oil and Gas Ltd United States US Energy US Oil & Gas Midstream
240 Diamond Offshore Drilling Inc United States US Energy US Oil & Gas Drilling

Top Energy Companies from the United States as of Jul. 01, 2025

211. Blue Dolphin Energy Co.

Company Profile: Blue Dolphin Energy Co.
Market Cap (USD): $23.9 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Refining & Marketing

212. Battalion Oil Corporation

Company Profile: Battalion Oil Corporation
Market Cap (USD): $23.2 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

213. BP Prudhoe Bay Royalty Trust

Company Profile: BP Prudhoe Bay Royalty Trust
Market Cap (USD): $10.7 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Refining & Marketing

214. Marine Petroleum Trust

Company Profile: Marine Petroleum Trust
Market Cap (USD): $9.5 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

215. Blue Water Petroleum Corp

Company Profile: Blue Water Petroleum Corp
Market Cap (USD): $8.8 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

216. SMG Industries, Inc.

Company Profile: SMG Industries, Inc.
Market Cap (USD): $294,860
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

217. Whiting Petroleum Corporation

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

218. Laredo Petroleum, Inc.

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

219. HighPoint Resources Corporation

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

220. Cimarex Energy Co.

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

221. Sundance Energy Inc.

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

222. El Paso Electric Co

Company Profile: El Paso Electric Co
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

223. Kinetik Holdings Inc.

Company Profile: Kinetik Holdings Inc.
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

224. OMDA Oil and Gas, Inc.

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

225. Standard Energy Corp

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

226. Hybrid Energy Holdings, Inc.

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

227. Noble Midstream Partners LP

Company Profile: Noble Midstream Partners LP
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

228. Soligen Technologies, Inc.

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

229. Silver Star Energy, Inc.

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

230. Index Oil & Gas, Inc.

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

231. Glen Rose Petroleum Corp

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

232. Santa Fe Petroleum, Inc.

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

233. Quest Oil Corp

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

234. Mountainview Energy Ltd

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

235. Universal Energy Corp

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

236. Black Rock Petroleum Company

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

237. Eon NRG Limited

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

238. Energy Revenue America, Inc.

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

239. Legend Oil and Gas Ltd

Company Profile: Legend Oil and Gas Ltd
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

240. Diamond Offshore Drilling Inc

Company Profile: Diamond Offshore Drilling Inc
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

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