WELL · 42-317-31560 · DISTRICT 8
Wolcott B #1R
Martin County · Spraberry (Trend Area) field · Directional
Wolcott B #1R (API 42-317-31560) is a well in Martin County operated by R K Petroleum Corp., completed February 27, 1998.
The RRC has issued 2 drilling permits between 1998 and 1999, permitted to 12,400 ft.
Completion filings report 9 formation tops, including B/Clearfork, Spraberry, Dean, Strawn.
Its 3 leases have reported 68.8K barrels of oil and 395 mcf of gas since January 1993, 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 8, 2026
- Permits on file
- 530
- Phone
- (432) 683-4319
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | R K Petroleum Corp. |
| Production reports | Crossfoot Operating, LLCthrough Jul 2011 |
| Latest permit | R K Petroleum CorporationJan 14, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,400
- total depth, ft
- 2
- permits on file
- Jan 14, 1999
- last permit issued
- Feb 27, 1998
- completed
- 68.8K
- cumulative oil, bbl
- 395
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 27, 1998
- Shut in
- —
- Plugged
- —
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 3 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 |
|---|---|---|---|---|---|---|
| Wolcott B O-10-35987 | Anchor Ranch (Devonian) | Crossfoot Operating, LLC | 1 | 24.1K | 0 | Mar 1999 – Jul 2026 |
| Wolcott B O-10-35689 | Spraberry (Trend Area) | R K Petroleum Corp. | 1 | 1.34K | 0 | Feb 1998 – May 1999 |
| Wolcott "B" O-10-25213 | Anchor Ranch (Devonian) | R K Petroleum Corp. | 1 | 43.4K | 395 | Jan 1993 – May 1998 |
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.
- 1R K Petroleum Corp.Jan 1993 → Mar 2007
- 2Crossfoot Operating, LLCApr 2011 → Jul 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 481970-99 | Recompletion | R K Petroleum Corporation | Jan 11, 1999 | Jan 14, 1999 | Feb 2, 1999 | 12,400 |
| 473133-99 | Recompletion | R K Petroleum Corporation | Feb 9, 1998 | Feb 10, 1998 | Feb 10, 1998 | 8,245 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-25213 | — | — | — | — |
| — | — O-10-35689 | — | — | — | — |
| — | — O-10-35987 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,893 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| B/Clearfork | 7,745 | -4,852 |
| Spraberry | 7,946 | -5,053 |
| Spraberry | 7,954 | -5,061 |
| Dean | 9,298 | -6,405 |
| Dean | 9,314 | -6,421 |
| Strawn | 10,808 | -7,915 |
| Strawn | 10,823 | -7,930 |
| MississippianUPPER MISS | 11,220 | -8,327 |
| L. Miss | 11,631 | -8,738 |
| Woodford | 11,932 | -9,039 |
| Woodford | 11,944 | -9,051 |
| Silurian (undifferentiated)SILURIAN | 12,054 | -9,161 |
| Devonian | 12,068 | -9,175 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,184 | 8,204 | Perforated |
| 12,190 | 12,216 | Perforated |
| — | 12,095 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 366 | 17.5 | 350 S |
| 8.625 | 4,500 | 11 | 235 S |
| 5.5 | 12,078 | 7.875 | 500 S |
| 5.5 | 12,190 | 7.875 | 380 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 10, 1999 | Mar 26, 1999 | Yes |
| 00 | Apr 21, 1999 | Mar 26, 1998 | Yes |
| 00 | May 5, 1998 | Mar 26, 1998 | Yes |
| 00 | Apr 22, 1998 | — | — |
| 00 | Jan 12, 1984 | Sep 21, 1976 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-317-31560 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-31560 → 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/31731560, documented in the API reference.