McMullen County, Texas Wells Summary
Back to Texas Well Records
Total wells
Last 60 days
Prior 60 days
60-day trend
McMullen County contains 2,916 wells on file, with top operators including EOG RESOURCES, INC. and CHESAPEAKE OPERATING, INC..
Wells in McMullen span several oil & gas fields including EAGLEVILLE (EAGLE FORD-1) and HAWKVILLE (EAGLEFORD SHALE).
Most recent well on record: FLAMMENWERFER UNIT, operated by VERDUN OIL & GAS LLC — last updated May 2026.
Active drilling rigs · Baker Hughes snapshot, week of 2026-06-12
By basin
- 164 Permian
- 44 Eagle Ford
- 29 Haynesville
- 22 Other
- 2 Granite Wash
Drilling for
- 214 Oil
- 47 Gas
McMullen County well density
Every dot is one well — small blue dots are historic wells;
larger orange dots are wells with activity in the last 60 days.
1,327 wells plotted ·
7 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Operators in McMullen County by total wells
Operators: Eog Resources, Inc., Chesapeake Operating, Inc., Chesapeake Operating, L.l.c., Murphy Expl. & Prod. Co. - Usa, Bpx Operating Company, Swift Energy Operating, Llc, Bhp Billiton Pet(Txla Op) Co, Comstock Oil & Gas, Lp, Talisman Energy Usa Inc., Petrohawk Operating Company.
Top Oil & Gas Fields intersecting McMullen County
Fields: Eagleville (Eagle Ford-1), Hawkville (Eagleford Shale), A.w.p. (Olmos), Wildcat, San Miguel Creek (Wilcox Cons.), Sugarkane (Eagle Ford), Eagleville (Eagle Ford), Baker (2500), Ezzell, Campana, South.
Top Counties in Texas most active by total wells
Compare McMullen against the other busiest counties in Texas:
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| FLAMMENWERFER UNIT | 2026-05-13 | 3 | VERDUN OIL & GAS LLC | 31137595 |
| FLAMMENWERFER UNIT | 2026-05-13 | 3 | VERDUN OIL & GAS LLC | 31137597 |
| FLAMMENWERFER UNIT | 2026-05-13 | 3 | VERDUN OIL & GAS LLC | 31137596 |
| BERRY RANCH A | 2026-05-11 | 4 | not found | 31137615 |
| PALISADES D | 2026-05-06 | 2 | EOG RESOURCES, INC. | 31137636 |
| PALISADES C | 2026-05-06 | 2 | EOG RESOURCES, INC. | 31137635 |
| FORREST WHEELER 15 | 2026-05-06 | 4 | BPX OPERATING COMPANY | 31135196 |
| STS C | 2026-05-01 | BPX OPERATING COMPANY | 31137608 | |
| BERRY RANCH C | 2026-05-01 | 2 | not found | 31137616 |
| BERRY RANCH B | 2026-04-30 | 2 | not found | 31137614 |
Surface Ownership Records:
