42-211-31903
Final CompletionMATHERS
HEMPHILL County · District 10 · SEAGULL ENERGY E&P INC. · GILL RANCH (SWEETWATER SAND)
Permits
3
Max Depth
12,300 ft
First Permit
1989-03-02
Latest Activity
2009-07-01
Lifespan
20 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1991-05-07
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SEAGULL ENERGY E&P INC. ≠ Production: MMGL TXPH, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: SEAGULL ENERGY E&P INC. ≠ Permit: DEVON ENERGY PRODUCTION CO, L.P.
Resolved via: production → MMGL TXPH, LLC
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
1993-01
Last Production
2026-07
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.
Formation Tops (8) Elevation 2,977 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BROWN DOLOMITE | 4,610 ft | -1,633 ft |
| HEEBNER | 5,914 ft | -2,937 ft |
| MISSOURIAN | 7,946 ft | -4,969 ft |
| GRANITE WASH | 8,650 ft | -5,673 ft |
| MORROW | 11,706 ft | -8,729 ft |
| MISS. CHESTER (Mississippian) | 12,130 ft | -9,153 ft |
| MISSISSIPPIAN CHESTER (Mississippian) | 12,130 ft | -9,153 ft |
| MERAMAC | 12,190 ft | -9,213 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (7)
| Interval | Type |
|---|---|
| 8,672–8,702 ft | Perforated |
| 8,713–8,729 ft | Perforated |
| 8,742–8,753 ft | Perforated |
| 11,508–11,532 ft | Perforated |
| 11,815–11,820 ft | Perforated |
| 11,815–11,841 ft | Perforated |
| 11,829–11,841 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 932 ft | 655 sx |
| 8.625" | 3,193 ft | 655 sx |
| 5.5" | 12,300 ft | 415 sx |
Permit History (3)
Applications (3)
Records & Logs
8 completion filings on record · 3 with log images at RRC.
+2 more filings
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 1023
- Max Depth
- 12,300 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- SEAGULL ENERGY E&P INC.
- Completed
- 1991-05-07
Operator
- Name
- SEAGULL ENGY E&P INC
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2000-04-28)
- Cum Oil (all leases)
- 568,707 bbl
- Cum Gas (all leases)
- 130,017,827 mcf
- Total Permits
- 172