List of Micro-Cap Oil & Gas Stocks Listed on U.S. Exchanges
High-potential exploration, production, and service companies with market capitalizations between $50 million and $300 million.
Micro-Cap Oil Stocks represent a speculative niche of the energy sector, featuring companies with market capitalizations typically ranging from $50 million to $300 million. This list includes oil & gas companies headquartered both in the U.S. and abroad that are listed on major American exchanges. We update this page at the start of every month so it is possible that a company’s market cap might go above 300 million or below 50 million dollars between updates. Investors frequently screen all micro-cap stocks to find "hidden gem" exploration plays that may offer explosive growth tied to rising oil prices or new basin discoveries.
Speculator Intelligence
Micro-Cap Energy Insights 2026
High Beta Performance
Micro-cap tickers like CEI and HUSA often show 50-100% YTD swings, significantly outperforming or underperforming large-cap peers based on futures volatility.
Basin Specificity
Success in this tier often depends on a company's specific acreage in regions like the Permian or Delaware Basins, where small operators can become acquisition targets.
Monthly Cap Drifts
Due to their size, companies frequently drift between nano-cap and small-cap status. Regular monthly screening is essential to track these transitions.
Services Leverage
Equipment and service micro-caps provide high-leverage exposure to drilling activity cycles, often acting as a leading indicator for the broader industry.
2026 Metrics
Top Micro-Cap Performance Watchlist
| Ticker | Company | Market Cap | YTD % | Focus |
|---|---|---|---|---|
| EPM | Evolution Petroleum | ~$195M | +12.4% | E&P |
| CEI | Camber Energy | ~$82M | +45.2% | E&P / ESG |
| HUSA | Houston American Energy | ~$64M | +31.8% | Texas E&P |
| EPSN | Epsilon Energy | ~$118M | +8.5% | Midstream / E&P |
| RNGR | Ranger Energy | ~$245M | +15.3% | Services |
Directory
Micro-Cap Oil & Gas Directory
Additional oil & gas companies can be found through the following links:
- List of Publicly Traded Energy Companies
- Large-Cap Oil & Gas
- Mid-Cap Oil & Gas
- Small-Cap Oil & Gas
- Nano-Cap Oil & Gas
Downstream
- Calumet Specialty Products Partners, L.P. (CLMT) (Specialty and fuel products)
Exploration and Production
- Approach Resources Inc. (AREX) (Texas)
- Comstock Resources, Inc. (CRK) (Louisiana and Texas)
- Contango Oil & Gas Company (MCF) (Gulf of Mexico, onshore Texas Gulf Coast, Rocky Mountains)
- Earthstone Energy, Inc. (ESTE) (Montana, North Dakota and Texas)
- EV Energy Partners, L.P. (EVEP) (MLP – Multi Region)
- Evolution Petroleum Corporation, Inc. (EPM) (Louisiana)
- Gastar Exploration Inc. (GST) (Oklahoma and West Virginia)
- Genie Energy Ltd. (GNE) (Electric and natural gas utility; oil and gas exploration production)
- Jones Energy, Inc. (JONE) (Texas and Oklahoma)
- Legacy Reserves L.P. (LGCY) (MLP: Permian Basin, Mid-Continent and Rocky Mountain Regions)
- Lilis Energy, Inc. (LLEX) (Delaware Basin)
- Lonestar Resources US Inc. (LONE) (Unconventional assets; Eagle Ford Shale)
- Mid-Con Energy Partners, L.P. (MCEP) (South Central Region)
- Northern Oil and Gas, Inc. (NOG) (Non-Operator: North Dakota and Montana)
- Petroquest Energy Inc. (PQ) (Louisiana, Texas and the shallow waters of the Gulf of Mexico)
- PrimeEnergy Corporation (PNRG) (United States and Gulf of Mexico)
- Sundance Energy Australia Limited (SNDE) (Texas and Oklahoma)
- Tellurian Inc. (TELL) (LNG projects; U.S. Gulf Coast)
- Torchlight Energy Resources, Inc. (TRCH) (Kansas, Oklahoma and Texas)
- Transatlantic Petroleum Ltd. (TAT) (Albania, Bulgaria and Turkey)
- Vaalco Energy Inc. (EGY) (West Africa)
- Zion Oil & Gas Inc. (ZN) (Israel)
Exploration and Production: Foreign Companies
- Bellatrix Exploration Ltd. (BXE) (Canada: Activities in Western Canada)
- Geopark Ltd. (GPRK) (Chile)
- Transglobe Energy Corp (TGA) (Canada: Activities in Egypt and Yemen)
Equipment and Services
Additional micro-cap oil & gas companies can be found in the following section: Micro-Cap Oil & Gas Equipment and Services
- CGG (CGG) (France: Seismic equipment and reservoir monitoring instruments; geophysical surveys)
- Ranger Energy Services, Inc. (RNGR) (IPO August 11, 2017; well service rigs)
Midstream
- Adams Resources & Energy, Inc. (AE) (Midstream and Oil & Gas Production)
- Blueknight Energy Partners L.P., L.L.C. (BKEP) (MLP: Crude Oil, Liquid Asphalt Cement and Residential Fuel Oil)
- Sanchez Midstream Partners LP (SNMP) (Texas: midstream assets)
- Southcross Energy Partners, L.P. (SXE) (Midstream natural gas and NGL assets)
Oil and Gas Trusts
- Chesapeake Granite Wash Trust (CHKR) (Royalty interests in oil and natural gas wells located in Oklahoma)
- Cross Timbers Royalty Trust (CRT) (Interests in oil and gas properties)
- Enduro Royalty Trust (NDRO) (Net profits interest in properties owned by Enduro Resource Partners)
- Hugoton Royalty Trust (HGT) (Net profits interests in natural gas properties)
- MV Oil Trust (MVO) (Net profits interests in oil and gas properties of MV Partners)
- North European Oil Royalty Trust (NRT) (Collects, holds and verifies royalties paid by the operating companies)
- Pacific Coast Oil Trust (ROYT) (Trust formed by Pacific Coast Energy Company)
- SandRidge Mississippian Trust II (SDR) (Royalty interests in oil and natural gas properties in Oklahoma and Kansas)
- SandRidge Permian Trust (PER) (Royalty interests in oil & gas properties located in Texas)
- VOC Energy Trust (VOC) (Net profits interest in oil & natural gas properties)
Investment Alert
Risks of Micro-Cap Speculation
Illiquidity Premium
Micro-cap stocks often have low daily trading volume, meaning large orders can cause massive price slippage or difficulty exiting a position.
Delisting Risk
Companies in this tier face higher risks of failing to meet exchange minimum share price requirements, which can lead to OTC transitions.
Commodity Gearing
With limited balance sheets, these firms are highly geared to oil prices; a 10% drop in crude can result in a 50%+ drop in equity value.
Consider small-cap oil stocks as a potentially more stable alternative.
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