42-393-32402
PRODUCING HorizontalVOLLMERT TRUST
ROBERTS County · District 10 · BRACKEN OPERATING L.L.C. · MENDOTA NW. (GRANITE WASH)
Permits
1
Max Depth
15,300 ft
First Permit
2011-10-28
Latest Activity
2011-10-28
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2012-03-29
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: BRACKEN OPERATING L.L.C. ≠ Permit: JONES ENERGY, LTD.
Resolved via: production → BRACKEN OPERATING, L.L.C.
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
2012-03
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 (9) Elevation 2,788 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UGWR | 9,661 ft | -6,873 ft |
| GW 'B' | 9,955 ft | -7,167 ft |
| GW 'C' | 10,122 ft | -7,334 ft |
| GW 'D' | 10,263 ft | -7,475 ft |
| CHEROKEE SHALE | 10,367 ft | -7,579 ft |
| GW 'E' | 10,403 ft | -7,615 ft |
| GW 'F' | 10,492 ft | -7,704 ft |
| GW 'G' | 10,524 ft | -7,736 ft |
| GW LOWER 'G' | 10,560 ft | -7,772 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 |
|---|---|
| 10,557–14,900 ft | Open hole |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 766 ft | 800 sx |
| 9.625" | 5,145 ft | 230 sx |
| 7" | 10,827 ft | 340 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing on record · 1 with log images at RRC.
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
- 531H
- Max Depth
- 15,300 ft
- Drill Type
- Horizontal
- County
- ROBERTS
- District
- 10
- Operator
- BRACKEN OPERATING L.L.C.
- Completed
- 2012-03-29
Operator
- Name
- MAYNARD OIL CO
- Location
- PERRYTON
- P-5 Status
- Active (filed 2026-03-18)
- Cum Oil (all leases)
- 2,181,091 bbl
- Cum Gas (all leases)
- 53,599,965 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 140