WELL · 42-009-39711 · DISTRICT 9
Wolf D. L. #4
Archer County · Archer County Regular field · Vertical
Wolf D. L. #4 (API 42-009-39711) is a plugged well in Archer County, plugged October 25, 2001, last operated by Chek Oil CO. LLC.
The RRC has issued one drilling permit, issued March 16, 1987, permitted to 1,400 ft.
It was permitted by Chek Oil CO. and has since transferred to Chek Oil CO. LLC on the wellbore schedule.
Completion filings report one formation top, including Gunsite.
Its lease has reported 17.2K barrels of oil and 21 mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chek Oil Co.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · (432) 288-7169
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chek Oil Co. LLC |
| Production reports | Chek Oil Co., LLCthrough Oct 2025 |
| Latest permit | Chek Oil Co.Mar 16, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,400
- total depth, ft
- 1
- permits on file
- Mar 16, 1987
- last permit issued
- May 25, 1987
- completed
- 17.2K
- cumulative oil, bbl
- 21
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 25, 1987
- Shut in
- —
- Plugged
- Oct 25, 2001
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; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Wolf, D. L. O-13-187 | Archer County Regular | Chek Oil Co., LLC | 6 | 17.2K | 21 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3 · prior 12 6(-50%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chek Oil Co.Jan 1993 → May 2019
- 2Chek Oil Co., LLCJun 2019 → Oct 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 327668-99 | Drill | Chek Oil Co. | Mar 12, 1987 | Mar 16, 1987 | May 12, 1987 | 1,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-187 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,100 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Gunsite | 1,295 | -195 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,295 | 1,303 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,350 | 7.875 | 300 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 10, 1987 | Jun 4, 1987 | Yes |
| 00 | Jun 9, 1987 | — | — |
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 42-009-39711 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-009-39711 → 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/00939711, documented in the API reference.