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 Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
151 Kosmos Energy Ltd. $427.1 M United States US Energy US Oil & Gas E&P
152 EXCO Resources, Inc. $392.8 M United States US Energy US Oil & Gas E&P
153 Star Group, L.P. $391.1 M United States US Energy US Oil & Gas Midstream
154 VAALCO Energy, Inc. $381.6 M United States US Energy US Oil & Gas E&P
155 FTS International, Inc. $372.5 M

(March 1, 2022)

 United States US Energy US Oil & Gas Equipment & Services
156 Goodrich Petroleum Corporation $368.9 M

(Dec. 1, 2021)

 United States US Energy US Oil & Gas E&P
157 NACCO Industries, Inc. $357.3 M United States US Energy US Thermal Coal
158 Overseas Shipholding Group, Inc. $346.6 M United States US Energy US Oil & Gas Midstream
159 Ranger Energy Services, Inc. $332.0 M United States US Energy US Oil & Gas Equipment & Services
160 Unit Corp $314.2 M United States US Energy US Oil & Gas Integrated
161 PrimeEnergy Resources Corporation $297.3 M United States US Energy US Oil & Gas E&P
162 Green Plains Partners LP $287.9 M

(Jan. 1, 2024)

 United States US Energy US Oil & Gas Midstream
163 Summit Midstream Partners, LP $277.8 M United States US Energy US Oil & Gas Midstream
164 San Juan Basin Royalty Trust $268.0 M United States US Energy US Oil & Gas E&P
165 PetroTal Corp. $255.0 M United States US Energy US Oil & Gas E&P
166 Berry Corporation $253.0 M

(Dec. 1, 2025)

 United States US Energy US Oil & Gas E&P
167 Empire Petroleum Corp $252.7 M

(March 1, 2022)

 United States US Energy US Oil & Gas E&P
168 CSI Compressco LP $251.3 M

(Jan. 1, 2024)

 United States US Energy US Oil & Gas Equipment & Services
169 W&T Offshore, Inc. $239.5 M United States US Energy US Oil & Gas E&P
170 Geospace Technologies Corporation $228.0 M United States US Energy US Oil & Gas Equipment & Services
171 Blueknight Energy Partners, L.P. $194.0 M

(Aug. 1, 2022)

 United States US Energy US Oil & Gas Midstream
172 Pardee Resources Co. $192.2 M United States US Energy US Oil & Gas Equipment & Services
173 Gulf Island Fabrication, Inc. $191.3 M United States US Energy US Oil & Gas Equipment & Services
174 Ring Energy, Inc. $187.7 M United States US Energy US Oil & Gas E&P
175 Amplify Energy Corp. $187.4 M United States US Energy US Oil & Gas E&P
176 Sintana Energy, Inc. $173.2 M United States US Energy US Oil & Gas E&P
177 PHX Minerals Inc. $165.0 M

(June 1, 2025)

 United States US Energy US Oil & Gas E&P
178 Vantage Drilling International $162.7 M United States US Energy US Oil & Gas Drilling
179 Smart Sand, Inc. $160.5 M United States US Energy US Oil & Gas Equipment & Services
180 Exterran Corporation $152.6 M

(Oct. 1, 2022)

 United States US Energy US Oil & Gas Equipment & Services

Top Energy Companies from the United States as of Jan. 01, 2026

151. Kosmos Energy Ltd.

Company Profile: Kosmos Energy Ltd.
Market Cap (USD): $427.1 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

152. EXCO Resources, Inc.

Company Profile: EXCO Resources, Inc.
Market Cap (USD): $392.8 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

153. Star Group, L.P.

Company Profile: Star Group, L.P.
Market Cap (USD): $391.1 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

154. VAALCO Energy, Inc.

Company Profile: VAALCO Energy, Inc.
Market Cap (USD): $381.6 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

155. FTS International, Inc.

Company Profile: FTS International, Inc.
Market Cap (USD): $372.5 M (March 1, 2022)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

156. Goodrich Petroleum Corporation

Company Profile: Goodrich Petroleum Corporation
Market Cap (USD): $368.9 M (Dec. 1, 2021)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

157. NACCO Industries, Inc.

Company Profile: NACCO Industries, Inc.
Market Cap (USD): $357.3 M
Country: United States
Sector: US Energy
Industry: US Thermal Coal

158. Overseas Shipholding Group, Inc.

Company Profile: Overseas Shipholding Group, Inc.
Market Cap (USD): $346.6 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

159. Ranger Energy Services, Inc.

Company Profile: Ranger Energy Services, Inc.
Market Cap (USD): $332.0 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

160. Unit Corp

Company Profile: Unit Corp
Market Cap (USD): $314.2 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Integrated

161. PrimeEnergy Resources Corporation

Company Profile: PrimeEnergy Resources Corporation
Market Cap (USD): $297.3 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

162. Green Plains Partners LP

Company Profile: Green Plains Partners LP
Market Cap (USD): $287.9 M (Jan. 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

163. Summit Midstream Partners, LP

Company Profile: Summit Midstream Partners, LP
Market Cap (USD): $277.8 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

164. San Juan Basin Royalty Trust

Company Profile: San Juan Basin Royalty Trust
Market Cap (USD): $268.0 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

165. PetroTal Corp.

Company Profile: PetroTal Corp.
Market Cap (USD): $255.0 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

166. Berry Corporation

Company Profile: Berry Corporation
Market Cap (USD): $253.0 M (Dec. 1, 2025)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

167. Empire Petroleum Corp

Company Profile: Empire Petroleum Corp
Market Cap (USD): $252.7 M (March 1, 2022)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

168. CSI Compressco LP

Company Profile: CSI Compressco LP
Market Cap (USD): $251.3 M (Jan. 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

169. W&T Offshore, Inc.

Company Profile: W&T Offshore, Inc.
Market Cap (USD): $239.5 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

170. Geospace Technologies Corporation

Company Profile: Geospace Technologies Corporation
Market Cap (USD): $228.0 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

171. Blueknight Energy Partners, L.P.

Company Profile: Blueknight Energy Partners, L.P.
Market Cap (USD): $194.0 M (Aug. 1, 2022)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

172. Pardee Resources Co.

Company Profile: Pardee Resources Co.
Market Cap (USD): $192.2 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

173. Gulf Island Fabrication, Inc.

Company Profile: Gulf Island Fabrication, Inc.
Market Cap (USD): $191.3 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

174. Ring Energy, Inc.

Company Profile: Ring Energy, Inc.
Market Cap (USD): $187.7 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

175. Amplify Energy Corp.

Company Profile: Amplify Energy Corp.
Market Cap (USD): $187.4 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

176. Sintana Energy, Inc.

Company Profile: Sintana Energy, Inc.
Market Cap (USD): $173.2 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

177. PHX Minerals Inc.

Company Profile: PHX Minerals Inc.
Market Cap (USD): $165.0 M (June 1, 2025)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

178. Vantage Drilling International

Company Profile: Vantage Drilling International
Market Cap (USD): $162.7 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Drilling

179. Smart Sand, Inc.

Company Profile: Smart Sand, Inc.
Market Cap (USD): $160.5 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

180. Exterran Corporation

Company Profile: Exterran Corporation
Market Cap (USD): $152.6 M (Oct. 1, 2022)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

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