42-355-05367
UELLIFF, J. S.ET AL
NUECES County · District 4 · CHAMPLIN PETROLEUM CO. · AGUA DULCE (5100)
Permits
3
Max Depth
6,668 ft
First Permit
1979-07-03
Latest Activity
1990-04-20
Lifespan
11 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: CHAMPLIN PETROLEUM CO. ≠ Production: URBAN OIL & GAS GROUP, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: CHAMPLIN PETROLEUM CO. ≠ Permit: UNION PACIFIC RESOURCES COMPANY
Resolved via: production → URBAN OIL & GAS GROUP, 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 (3) Elevation 101 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| 5100 | 5,050 ft | -4,949 ft |
| E-31 | 6,108 ft | -6,007 ft |
| WARDNER UPPER | 6,375 ft | -6,274 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 (8)
| Interval | Type |
|---|---|
| 4,782–4,796 ft | Perforated |
| 5,264–5,275 ft | Perforated |
| 5,458–5,460 ft | Perforated |
| 5,582–5,596 ft | Perforated |
| 5,648–5,658 ft | Perforated |
| 5,792–5,805 ft | Perforated |
| 6,081–6,091 ft | Perforated |
| 6,108–6,120 ft | Perforated |
Casing (7)
| Size | Set Depth | Cement |
|---|---|---|
| 10" | 1,544 ft | — |
| 7" | 6,279 ft | — |
| 2.375" | 6,279 ft | — |
| 2.875" | 6,357 ft | — |
| 2.375" | 6,357 ft | — |
| 7" | 6,498 ft | — |
| 2.375" | — | — |
Permit History (3)
Applications (3)
Records & Logs
9 completion filings on record · 2 with log images at RRC.
+3 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
- 6,668 ft
- Drill Type
- Vertical
- County
- NUECES
- District
- 4
- Operator
- CHAMPLIN PETROLEUM CO.
Operator
- Name
- CHAMPLIN PETRO CO
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 1986-12-23)
- Total Permits
- 1,006