WELL · 42-393-32541 · DISTRICT 10
Vollmert B #12H
Roberts County · Mendota NW. (Granite Wash) field · Producing · Horizontal
Vollmert B #12H (API 42-393-32541) is a horizontal well in Roberts County operated by Unit Petroleum Company, completed July 19, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 30, 2013, permitted to 10,800 ft.
Completion filings report 6 formation tops, including Brown Dolomite, Douglas, Tonkawa, Kansas City.
No lease production has been reported under this well’s leases.
Operator of record
- Based in
- Tulsa, OK
- P-5 status
- Active (A)
- P-5 last filed
- Jan 13, 2025
- Permits on file
- 1,100
- Phone
- (918) 493-7700
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unit Petroleum Company |
| Production reports | Unit Petroleum Companythrough Apr 2026 |
| Latest permit | Unit Petroleum CompanyAug 30, 2013 |
- 10,800
- total depth, ft
- 1
- permits on file
- Aug 30, 2013
- last permit issued
- Jul 19, 2014
- completed
- 0
- cumulative oil, bbl
- 2.68M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 19, 2014
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Vollmert "B" G-14-276057 | Mendota, NW. (Granite Wash) | Unit Petroleum Company | 1 | 0 | 2.68M | Dec 2013 – Jul 2026 |
Gas, mcf lease total
Last 12 months 117,550 · prior 12 129,769(-9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Unit Petroleum CompanyAug 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 768974-99 | Drill | Unit Petroleum Company | Aug 26, 2013 | Aug 30, 2013 | Nov 12, 2013 | 10,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-14-276057 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,836 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Dolomite | 4,180 | -1,344 |
| Douglas | 7,086 | -4,250 |
| Tonkawa | 7,794 | -4,958 |
| Kansas City | 8,193 | -5,357 |
| Marmaton | 9,035 | -6,199 |
| Granite Wash | 9,513 | -6,677 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,451 | 15,268 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 877 | 17.5 | 1,400 S |
| 9.625 | 6,365 | 12.25 | 650 S |
| 7 | 11,408 | 8.75 | 397 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 27, 2015 | Sep 29, 2014 | Yes |
| 00 | Mar 25, 2015 | Jul 15, 2014 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-393-32541 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-393-32541 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/39332541, documented in the API reference.