42-167-01507
INJECTIONSTEWART MACO -A- 300
GALVESTON County · District 3 · GCOWS OPERATING LLC · GILLOCK (BIG GAS)
Permits
1
Max Depth
8,671 ft
First Permit
1983-11-22
Latest Activity
1983-11-22
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1983-11-22
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: GCOWS OPERATING LLC ≠ Permit: AMOCO PRODUCTION CO.-ALVIN
Resolved via: production → GCOWS OPERATING 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
Injection / Disposal
Permitted Volume
700 bbl/d
Max Pressure
1,200 psi
Injection Interval
2,400–7,400 ft
Injected (12mo)
254,885 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-10-01)
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 (2) Elevation 18 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIOCENE (Miocene (undifferentiated)) | 2,000 ft | -1,982 ft |
| FRIO | 6,800 ft | -6,782 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 (6)
| Interval | Type |
|---|---|
| 5,240–5,250 ft | Perforated |
| 5,385–5,405 ft | Perforated |
| 5,385–5,475 ft | Perforated |
| 5,455–5,475 ft | Perforated |
| 5,815–5,835 ft | Perforated |
| 6,280–6,290 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 7" | 103 ft | 450 sx |
| 10.75" | 275 ft | — |
| 10.75" | 2,751 ft | 1,840 sx |
| 6.625" | 7,465 ft | 450 sx |
| 6.625" | 7,565 ft | 450 sx |
Permit History (1)
Applications (1)
Records & Logs
7 completion filings on record.
+1 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
- 2
- Max Depth
- 8,671 ft
- Drill Type
- Vertical
- County
- GALVESTON
- District
- 3
- Operator
- GCOWS OPERATING LLC
- Completed
- 1983-11-22
Operator
- Name
- GCOWS OPER LLC
- Location
- MONTGOMERY
- P-5 Status
- Active (filed 2026-02-24)
- Cum Oil (all leases)
- 122,841 bbl
- Cum Gas (all leases)
- 2,709 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 1