42-105-35045
PRODUCINGMCMULLAN RANCH B
CROCKETT County · District 7 · UPP OPERATING LLC · WHITEHEAD (STRAWN)
Permits
2
Max Depth
9,100 ft
First Permit
1985-05-20
Latest Activity
1985-05-20
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1986-04-10
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: UPP OPERATING LLC ≠ Permit: SONORA SOUTHWEST PARTNERSHIP
Resolved via: production → UPP 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
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 (4) Elevation 2,364 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CANYON SD SEC (Canyon) | 6,905 ft | -4,541 ft |
| CANYON MARKER (Canyon) | 7,478 ft | -5,114 ft |
| BASE CANYON SD SEC (Canyon) | 7,946 ft | -5,582 ft |
| STRAWN LM (Strawn) | 8,432 ft | -6,068 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 (1)
| Interval | Type |
|---|---|
| 8,442–8,992 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,327 ft | 440 sx |
| 4.5" | 9,060 ft | 495 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 74
- Max Depth
- 9,100 ft
- Drill Type
- Vertical
- County
- CROCKETT
- District
- 7
- Operator
- UPP OPERATING LLC
- Completed
- 1986-04-10
Operator
- Name
- UPP OPER, LLC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-03-06)
- Cum Oil (all leases)
- 293,241 bbl
- Cum Gas (all leases)
- 486,804,996 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 33