The largest oil and gas operators active in Mississippi — ranked by total well count, with recent drilling activity, DUC inventory, and producing-well counts for each. Click any operator to see their full profile and current permits.
Refreshed daily from MSOGB well-header records. Data current as of 2026-09-16.
Quick answer: By wells operated, Denbury Onshore is the largest oil and gas operator in Mississippi with 2,159 wells on record, followed by Tellus Operating Group (789) and Southern Community (784). Ranked from Mississippi State Oil & Gas Board (MSOGB) well-header records (as of 2026-09-16). This is an operated-well-count ranking, not a revenue or market-cap ranking.
As of 2026-09-16, the most active operator in Mississippi is Denbury Onshore with 2,159 wells on record and 2 recent permits, across the top 100 ranked operators, per Mississippi State Oil & Gas Board (MSOGB) records.
| # | Operator | Wells | Permits 24mo | DUCs | Producing | Top Formation | Top County |
|---|---|---|---|---|---|---|---|
| 1 | Denbury Onshore | 2,159 | 2 | 522 | 1,572 | Mid-Gulf Coast Basin | Jasper |
| 2 | Tellus Operating Group | 789 | 27 | 134 | 585 | Mid-Gulf Coast Basin | Lamar |
| 3 | Southern Community | 784 | 2 | 90 | 603 | Mid-Gulf Coast Basin | Jefferson Davis |
| 4 | Humble Oil And Refining Company | 507 | 0 | 153 | 32 | Austin Chalk | Adams |
| 5 | Highmark Energy Operating | 470 | 404 | 167 | 303 | Mid-Gulf Coast Basin | Yazoo |
| 6 | Ms Oil & Gas Board | 447 | 0 | 0 | 443 | — | Well Cumulatives |
| 7 | Callon Petroleum Company | 432 | 0 | 48 | 32 | Austin Chalk | Adams |
| 8 | Sun Oil Company | 351 | 0 | 47 | 6 | Austin Chalk | Pike |
| 9 | Pruet Production Company | 342 | 11 | 45 | 149 | Mid-Gulf Coast Basin | Monroe |
| 10 | Venture Oil & Gas | 329 | 38 | 84 | 218 | Mid-Gulf Coast Basin | Jones |
| 11 | Formentera Operations LLC | 307 | 21 | 35 | 272 | Mid-Gulf Coast Basin | Jones |
| 12 | Petrotx Operating LLC | 291 | 0 | 3 | 288 | Austin Chalk | Lamar |
| 13 | Hughes & New Oil Company | 274 | 0 | 18 | 4 | Austin Chalk | Adams |
| 14 | Encana Oil & Gas | 263 | 0 | 1 | 0 | Austin Chalk | Amite |
| 15 | Gulf Oil | 250 | 0 | 77 | 28 | Mid-Gulf Coast Basin | Lamar |
| 16 | D A Biglane Operating Company | 235 | 0 | 26 | 17 | Austin Chalk | Adams |
| 17 | Shell Oil Company | 231 | 0 | 35 | 17 | Mid-Gulf Coast Basin | Rankin |
| 18 | Chevron | 214 | 0 | 68 | 40 | Mid-Gulf Coast Basin | Adams |
| 19 | Germanygulmon | 213 | 0 | 2 | 2 | Austin Chalk | Wilkinson |
| 20 | Moon Hines Tigrett Op Company | 209 | 0 | 61 | 64 | Mid-Gulf Coast Basin | Monroe |
| 21 | Pan American Petroleum | 208 | 0 | 34 | 0 | Austin Chalk | Franklin |
| 22 | Black Jack Oil | 194 | 12 | 49 | 142 | Austin Chalk | Adams |
| 23 | Eog Resources | 191 | 0 | 29 | 48 | Mid-Gulf Coast Basin | Jefferson Davis |
| 24 | Larco Drilling & Exploration | 188 | 0 | 37 | 5 | Mid-Gulf Coast Basin | Amite |
| 25 | Pistol Ridge Partnersllc | 182 | 37 | 19 | 163 | Mid-Gulf Coast Basin | Madison |
| 26 | Cities Service Oil Company | 173 | 0 | 49 | 5 | Austin Chalk | Wilkinson |
| 27 | Mcgowan Working Partners | 173 | 0 | 59 | 78 | Austin Chalk | Adams |
| 28 | Gulf Refining Company | 172 | 0 | 59 | 5 | Mid-Gulf Coast Basin | Wilkinson |
| 29 | Exxon Mobil | 170 | 0 | 39 | 44 | Mid-Gulf Coast Basin | Marion |
| 30 | Gibraltar Energy Company | 169 | 0 | 59 | 53 | Floyd-Neal | Monroe |
| 31 | Secan Oil | 167 | 0 | 11 | 7 | Austin Chalk | Adams |
| 32 | Australis Tms | 164 | 2 | 6 | 0 | Mid-Gulf Coast Basin | Amite |
| 33 | Spooner Petroleum Company | 163 | 0 | 58 | 39 | Mid-Gulf Coast Basin | Forrest |
| 34 | Seriopunches Oil Company | 155 | 0 | 19 | 3 | Austin Chalk | Adams |
| 35 | Penn Virginia Oil & Gas | 155 | 0 | 20 | 6 | Mid-Gulf Coast Basin | Lamar |
| 36 | Scorpion Oil & Gas | 148 | 1 | 13 | 135 | Mid-Gulf Coast Basin | Clarke |
| 37 | Adco Producing Company | 147 | 0 | 27 | 15 | Austin Chalk | Adams |
| 38 | Roundtree & Assoc | 141 | 0 | 51 | 55 | Mid-Gulf Coast Basin | Jefferson Davis |
| 39 | Griffin & Griffin Exploration | 138 | 0 | 31 | 60 | Austin Chalk | Wilkinson |
| 40 | Meason Operating Company | 138 | 0 | 31 | 38 | Austin Chalk | Adams |
| 41 | Amoco Production Company | 137 | 0 | 22 | 31 | Austin Chalk | Franklin |
| 42 | Radzewicz Operating | 133 | 0 | 24 | 64 | Austin Chalk | Adams |
| 43 | Pennzoil Production Company | 132 | 0 | 74 | 42 | Mid-Gulf Coast Basin | Yazoo |
| 44 | Furrh | 132 | 0 | 15 | 7 | Austin Chalk | Adams |
| 45 | Jett Drilling Company | 125 | 0 | 24 | 1 | Austin Chalk | Adams |
| 46 | Big Joe Oil Company | 123 | 0 | 8 | 0 | Austin Chalk | Adams |
| 47 | Lyle Cashion Company | 121 | 0 | 11 | 4 | Mid-Gulf Coast Basin | Jefferson |
| 48 | Barnettserio | 119 | 0 | 19 | 0 | Austin Chalk | Adams |
| 49 | Wilcox Energy Company | 117 | 0 | 41 | 42 | Austin Chalk | Adams |
| 50 | El Toro Oil Company | 116 | 0 | 11 | 0 | Austin Chalk | Adams |
| 51 | J R Pounds | 114 | 3 | 29 | 74 | Mid-Gulf Coast Basin | Hinds |
| 52 | Mosbacher Energy Company | 105 | 5 | 12 | 59 | Mid-Gulf Coast Basin | Covington |
| 53 | Triad Oil & Gas | 102 | 0 | 13 | 16 | Mid-Gulf Coast Basin | Smith |
| 54 | Cardneaux | 100 | 0 | 31 | 19 | Austin Chalk | Adams |
| 55 | California Company | 96 | 0 | 16 | 0 | Mid-Gulf Coast Basin | Adams |
| 56 | Hayes & Assoc | 95 | 0 | 5 | 18 | Austin Chalk | Franklin |
| 57 | Amerada Hess | 94 | 0 | 24 | 15 | Mid-Gulf Coast Basin | Wayne |
| 58 | Marshall Young Oil Company | 91 | 0 | 22 | 17 | Austin Chalk | Lincoln |
| 59 | Kfg Petroleum | 90 | 3 | 41 | 19 | Austin Chalk | Adams |
| 60 | Placid Oil Company | 89 | 0 | 11 | 6 | Mid-Gulf Coast Basin | Clarke |
| 61 | Texaco | 87 | 0 | 9 | 5 | Mid-Gulf Coast Basin | Walthall |
| 62 | Laruesmith Production Company | 86 | 0 | 11 | 0 | Mid-Gulf Coast Basin | Franklin |
| 63 | John S Callon | 85 | 0 | 8 | 1 | Austin Chalk | Adams |
| 64 | Central Oil Company | 85 | 0 | 16 | 0 | Mid-Gulf Coast Basin | Smith |
| 65 | Getty Oil Company | 85 | 0 | 17 | 9 | Mid-Gulf Coast Basin | Clarke |
| 66 | Texas Petroleum Investment Company | 85 | 0 | 8 | 77 | Mid-Gulf Coast Basin | Lamar |
| 67 | Dallas Production | 84 | 0 | 5 | 65 | Floyd-Neal | Monroe |
| 68 | James B Furrh Jr | 84 | 0 | 10 | 1 | Austin Chalk | Wilkinson |
| 69 | El Toro Production | 82 | 0 | 17 | 20 | Austin Chalk | Adams |
| 70 | Coho Resources | 81 | 0 | 11 | 12 | Mid-Gulf Coast Basin | Lincoln |
| 71 | Hf Sinclair Corporation | 81 | 0 | 8 | 0 | Mid-Gulf Coast Basin | Yazoo |
| 72 | Burnsed Oil | 80 | 14 | 19 | 56 | Austin Chalk | Adams |
| 73 | Txo Production | 80 | 0 | 9 | 9 | Austin Chalk | Monroe |
| 74 | Halcon Resources | 79 | 0 | 2 | 0 | Austin Chalk | Wilkinson |
| 75 | Transcontinental Oil | 78 | 0 | 32 | 6 | Mid-Gulf Coast Basin | Covington |
| 76 | Plateau Oil & Gas Company | 77 | 0 | 2 | 75 | Austin Chalk | Marion |
| 77 | Carter Oil Company | 76 | 0 | 11 | 0 | Mid-Gulf Coast Basin | Madison |
| 78 | Bob Bertolet | 76 | 0 | 15 | 4 | Austin Chalk | Adams |
| 79 | David New Operating | 76 | 0 | 13 | 38 | Austin Chalk | Adams |
| 80 | Sohio Petroleum Company | 75 | 0 | 58 | 0 | Austin Chalk | Adams |
| 81 | Southeastern Resources | 75 | 0 | 14 | 5 | Mid-Gulf Coast Basin | Wayne |
| 82 | Magnolia Petroleum Company | 74 | 0 | 31 | 0 | Austin Chalk | Adams |
| 83 | Sunnylandntracting | 73 | 0 | 3 | 0 | Austin Chalk | Adams |
| 84 | Marlin Exploration | 73 | 6 | 3 | 10 | Austin Chalk | Adams |
| 85 | United Gas Pipeline Company | 71 | 0 | 11 | 0 | Mid-Gulf Coast Basin | Rankin |
| 86 | R W Tyson Producing | 71 | 0 | 12 | 46 | Mid-Gulf Coast Basin | Jones |
| 87 | Oxy | 71 | 0 | 10 | 39 | Austin Chalk | Wilkinson |
| 88 | Union Producing Company | 71 | 0 | 17 | 2 | Mid-Gulf Coast Basin | Yazoo |
| 89 | Echols & Assoc | 70 | 0 | 4 | 1 | Austin Chalk | Wilkinson |
| 90 | Inexco Oil Company | 70 | 0 | 5 | 11 | Mid-Gulf Coast Basin | Lawrence |
| 91 | Continental Oil Company | 69 | 0 | 6 | 1 | Mid-Gulf Coast Basin | Yalobusha |
| 92 | Smith Victor P | 69 | 0 | 6 | 2 | Austin Chalk | Franklin |
| 93 | Louisiana Land & Exploration Company | 68 | 0 | 5 | 4 | Mid-Gulf Coast Basin | Monroe |
| 94 | Love Petrl Company | 67 | 0 | 10 | 0 | Mid-Gulf Coast Basin | Rankin |
| 95 | Moonhines | 67 | 0 | 19 | 2 | Austin Chalk | Monroe |
| 96 | Victor P Smith | 65 | 0 | 5 | 0 | Mid-Gulf Coast Basin | Franklin |
| 97 | Denbury Resources | 65 | 0 | 11 | 19 | Mid-Gulf Coast Basin | Jasper |
| 98 | Liberty Operating | 64 | 28 | 1 | 63 | Mid-Gulf Coast Basin | Jones |
| 99 | Willdrill Production | 64 | 1 | 9 | 38 | Mid-Gulf Coast Basin | Jefferson Davis |
| 100 | Fortenbery Wade | 63 | 0 | 3 | 2 | Austin Chalk | Adams |
Source: Mississippi State Oil & Gas Board well-header records.
Ranking: Operators ranked by total well count under their current operator-of-record. Recent permits cover the last 24 months; DUC count is wells spudded but not yet producing; producing-well count is wells with a first-production date on file.
Why it matters: Knowing who operates the most wells in Mississippi — and who's drilling the most NOW — helps mineral owners understand who they're dealing with at the lease level.
Refresh cadence: Daily. Data current as of 2026-09-16.
Cite this dataset
Permanently archived and citable via a DOI on Zenodo (CERN), under a CC BY 4.0 license. DOI: 10.5281/zenodo.21442884 · View on Zenodo
License & attribution: This data is licensed CC BY 4.0. You are free to share and adapt it, including commercially, provided you credit “Buckhead Energy” and link back to this page or the DOI above.
By wells operated, Denbury Onshore is the largest oil and gas operator in Mississippi, with 2,159 wells on record per Mississippi State Oil & Gas Board (MSOGB) data. Note that "biggest" by revenue or market capitalization can rank differently — this measures operated well count.
The top 10 operators by operated well count are: Denbury Onshore, Tellus Operating Group, Southern Community, Humble Oil And Refining Company, Highmark Energy Operating, Ms Oil & Gas Board, Callon Petroleum Company, Sun Oil Company, Pruet Production Company, Venture Oil & Gas. The full top-100 ranking with permits, DUC inventory, and producing-well counts is in the leaderboard below.
Denbury Onshore operates the most wells in Mississippi at 2,159, with 2 permits filed in the last 24 months, per MSOGB well-header records.
This leaderboard ranks the top 100 operators active in Mississippi by total well count. Many more file with the regulator; these are the largest by operated wells.
By wells operated — the count of wells under each company's current operator-of-record designation in Mississippi State Oil & Gas Board (MSOGB) records. It is not a revenue, production-volume, or market-capitalization ranking.
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State: Mississippi
Operators ranked: 100
Total wells: 17,666
Permits (24mo): 617
Last refresh: 2026-09-16
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