TEXAS · WELLS · ROBERTS COUNTY · VOLLMERT "B" SL LEASE · API 42-393-32352 · DISTRICT 08
Vollmert B SL #11H
Roberts County · Mendota NW. (Granite Wash) field · Not Eligible for Allowable · Horizontal
Vollmert B SL #11H (API 42-393-32352) is a horizontal well in Roberts County operated by Unit Petroleum Company, completed August 3, 2011 and listed as not eligible for allowable on the RRC schedule, shut in July 1, 2017.
The RRC has issued one drilling permit, issued March 7, 2011, permitted to 9,941 ft.
Completion filings report 4 formation tops, including Brown Dolomite, Heebner Base, Marmaton, Granite Wash.
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 | none |
| Latest permit | Unit Petroleum CompanyMar 7, 2011 |
- 9,941
- total depth, ft
- 1
- permits on file
- Mar 7, 2011
- last permit issued
- Aug 3, 2011
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · AUG 2011 THROUGH —
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 3, 2011
- Shut in
- Jul 1, 2017
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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" SL G-14-265208 | Mendota, NW. (Granite Wash) | Unit Petroleum Company | 1 | 0 | 0 | Aug 2011 – — |
No volumes reported on these leases in the last three years.
Wells named Vollmert B SL
Unit Petroleum Company's other wells filed under this lease name in Roberts County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsPermits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 711023-99 | Drill | Unit Petroleum Company | Feb 25, 2011 | Mar 7, 2011 | Apr 16, 2011 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 3, 2011 | Vollmert B SL G-14-265208 | Mendota NW. (Granite Wash) | Unit Petroleum Company | Not Eligible for Allowable · shut in Jul 1, 2017 | 9,941 |
Formation tops
As filed on W-2/G-1. Subsea from 2,833 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown DolomiteTOP BROWN DOLOMITE | 4,154 | -1,321 |
| Heebner Base | 7,010 | -4,177 |
| Marmaton | 9,070 | -6,237 |
| Granite Wash | 9,543 | -6,710 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,618 | 13,900 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,515 | 12.25 | 1,400 S |
| 7 | 10,328 | 8.75 | 310 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 9, 2012 | Nov 17, 2011 | 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 42-393-32352 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-393-32352 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/39332352, documented in the API reference.