WELL · 42-009-41240 · DISTRICT 9
Oldham #B 4
Archer County · Archer County Regular field · Producing · Vertical
Oldham #B 4 (API 42-009-41240) is a well in Archer County operated by Chek Oil CO. LLC, completed February 21, 2000 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 30, 1999, permitted to 1,500 ft.
It was permitted by Bytex Oil Company and has since transferred to Chek Oil CO. LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Red Bed, Shale & Sand, Lime, Thomas Sand, Gun Site Lime.
Its lease has reported 74.2K barrels of oil and 46 mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Bytex Oil Company; 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 Apr 2026 |
| Latest permit | Bytex Oil CompanySep 30, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,500
- total depth, ft
- 1
- permits on file
- Sep 30, 1999
- last permit issued
- Feb 21, 2000
- completed
- 74.2K
- cumulative oil, bbl
- 46
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 21, 2000
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Oldham O-13-25642 | Archer County Regular | Chek Oil Co., LLC | 5 | 74.2K | 46 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 921 · prior 12 979(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Bytex Oil CompanyJan 1993 → Jan 2019
- 2Chek Oil Co.Feb 2019 → May 2019
- 3Chek Oil Co., LLCJun 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 487964-99 | Drill | Bytex Oil Company | Sep 27, 1999 | Sep 30, 1999 | Feb 10, 2000 | 1,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-25642 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,101 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Red Bed, Shale & Sand | 1 | 1,100 |
| Lime | 982 | 119 |
| Thomas Sand | 1,023 | 78 |
| Gun Site Lime | 1,322 | -221 |
| Gun Site Sand | 1,350 | -249 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,350 | 1,356 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,388 | 7.875 | 290 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 | May 25, 2000 | Mar 20, 2000 | Yes |
| 00 | May 3, 2000 | — | — |
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 42-009-41240 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-009-41240 → 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/00941240, documented in the API reference.