42-427-04994
UMCGILL BROS.
STARR County · District 4 · EXXON MOBIL CORPORATION · KELSEY SOUTH (ZONE 21-V W)
Permits
3
Max Depth
6,350 ft
First Permit
1977-11-18
Latest Activity
1989-03-17
Lifespan
11 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1975-09-22
Shut-In
—
Plugged
2008-09-25
!
EWA / Production operator mismatch
Scheduling: EXXON MOBIL CORPORATION ≠ Production: OVERTON PARK OIL & GAS LP (reported 2025-12)
!
EWA / Permit operator mismatch
Scheduling: EXXON MOBIL CORPORATION ≠ Permit: EXXON CORP.
Resolved via: production → OVERTON PARK OIL & GAS LP
Production Summary
Cum Oil
— bbl
Cum Gas
— mcf
First Production
1993-01
Last Production
2026-03
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Permit History (3)
Permit Applications (3)
#357079 A EXXON CORP.
received 1989-03-15
#188181 A EXXON CORP.
received 1983-03-11
#12397 A EXXON CORP.
received 1977-11-18
Well Details
- Well Number
- 396
- Max Depth
- 6,350 ft
- Drill Type
- Vertical
- County
- STARR
- District
- 4
- Operator
- EXXON MOBIL CORPORATION
- Completed
- 1975-09-22
Operator
- Name
- EXXON MOBIL CORP
- Location
- SPRING
- P-5 Status
- Y (filed 2026-01-04)
- Cum Oil (all leases)
- 155,164,556 bbl
- Cum Gas (all leases)
- 2,032,561,175 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G
- Total Permits
- 1,223