WELL · 42-103-35047 · DISTRICT 8
McKnight M. B. 21A #1
Crane County · Armer (Tubb) field · Producing · Vertical
Mcknight M. B. 21a #1 (API 42-103-35047) is a well in Crane County operated by Williams Oil Company, completed July 15, 2005 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 2004 and 2005, permitted to 6,413 ft.
Completion filings report 7 formation tops, including Judkins, Glorieta, Clear Fork, Tubb.
Its 2 leases have reported 166K barrels of oil and 683K mcf of gas since January 2005, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 12, 2026
- Permits on file
- 177
- Phone
- (432) 682-0363
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Williams Oil Company |
| Production reports | Williams Oil Companythrough Apr 2026 |
| Latest permit | Williams Oil CompanyJul 15, 2005 |
- 6,413
- total depth, ft
- 3
- permits on file
- Jul 15, 2005
- last permit issued
- Jul 15, 2005
- completed
- 166K
- cumulative oil, bbl
- 683K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2005 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 15, 2005
- 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 2 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McKnight, M. B. 21A G-10-207511 | Running W (Wichita-Albany) | Williams Oil Company | 1 | 0 | 56.2K | Jan 2005 – Jul 2026 |
| McKnight, M. B. 21A O-10-37650 | Armer (Tubb) | Williams Oil Company | 2 | 166K | 627K | Jul 2005 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,295 · prior 12 2,280(+1%)
Gas, mcf lease total
Last 12 months 6,788 · prior 12 7,675(-12%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Williams Oil CompanyJan 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 603498-99 | Recompletion | Williams Oil Company | Jul 14, 2005 | Jul 15, 2005 | Jul 15, 2005 | 6,373 |
| 554174-98 | Drill | Williams Oil Company | Feb 16, 2005 | Nov 29, 2004 | — | 6,413 |
| 554174-99 | Drill | Williams Oil Company | Nov 29, 2004 | Nov 29, 2004 | Dec 8, 2004 | 6,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-207511 | — | — | — | — |
| — | — O-10-37650 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,716 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Judkins | 3,218 | -502 |
| Glorieta | 4,020 | -1,304 |
| Clear Fork | 4,163 | -1,447 |
| Clear ForkCLEARFORK | 4,163 | -1,447 |
| Tubb | 4,600 | -1,884 |
| Wichita-AlbanyWICHITA | 5,107 | -2,391 |
| Wolfcamp | 5,955 | -3,239 |
| Pre-Permian | 6,213 | -3,497 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,709 | 4,729 | Perforated |
| 5,372 | 5,442 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 660 | 11 | 200 S |
| 4.5 | 6,413 | 7.875 | 850 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 | Jun 27, 2006 | Jul 22, 2005 | Yes |
| 00 | Mar 15, 2006 | — | — |
| 00 | Jun 29, 2005 | Feb 11, 2005 | Yes |
| 00 | Apr 13, 2005 | — | — |
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 42-103-35047 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-35047 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/10335047, documented in the API reference.