WELL · 42-093-31388 · DISTRICT 7
Gillock Heirs #4
Comanche County · Gillock Heirs (Strawn) field · Vertical
Gillock Heirs #4 (API 42-093-31388) is a plugged well in Comanche County, plugged October 24, 2019, last operated by Sandstone Services LLC.
The RRC has issued one drilling permit, issued December 20, 1985, permitted to 2,000 ft.
It was permitted by Bryan Research and has since transferred to Sandstone Services LLC on the wellbore schedule.
Completion filings report one formation top, including Gillock Heirs (Strawn).
Operator of record
Permitted by Bryan Research; the EWA schedule now lists a different operator.
Graham, TX · P-5 Y, filed Jan 5, 2026 · 3 permits on file · (817) 665-9499
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sandstone Services LLC |
| Production reports | Sandstone Services, LLCthrough Oct 2017 |
| Latest permit | Bryan ResearchDec 20, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,000
- total depth, ft
- 1
- permits on file
- Dec 20, 1985
- last permit issued
- Mar 11, 1986
- completed
- 0
- cumulative oil, bbl
- 65.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2019
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 11, 1986
- Shut in
- —
- Plugged
- Oct 24, 2019
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 |
|---|---|---|---|---|---|---|
| Gillock Heirs G-8-121632 | Gillock Heirs (Strawn) | Sandstone Services, LLC | 1 | 0 | 65.6K | Jan 1993 – Oct 2019 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Lucky Oil & GasJan 1993 → Oct 2006
- 2Hopkins, T. M. Operating Co.Jun 2010 → Oct 2011
- 3Swartz Oil CompanyJan 2012 → Nov 2015
- 4D.J. & T. EnergyDec 2015 → Jul 2016
- 5Sandstone Services, LLCMar 2017 → Oct 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 293409-99 | Drill | Bryan Research | Dec 20, 1985 | Dec 20, 1985 | — | 2,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-121632 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,365 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Gillock Heirs (Strawn) | 1,442 | -77 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,442 | 1,448 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 200 | 12.25 | 140 S |
| 4.5 | 1,600 | 7.875 | 125 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 | Jul 17, 1986 | Jun 19, 1986 | Yes |
| 00 | Jul 16, 1986 | — | — |
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 42-093-31388 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-093-31388 → 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/09331388, documented in the API reference.