WELL · 42-371-35158 · DISTRICT 8
Blackmon-Scharff #4WT
Pecos County · Pecos Valley (High Gravity) field · Vertical
Blackmon-Scharff #4WT (API 42-371-35158) is a well in Pecos County operated by Mosaic Pecos LLC, completed March 25, 1985.
The RRC has issued one drilling permit, issued October 5, 1984, permitted to 1,800 ft.
It was permitted by Wood, Mcshane & Thams and has since transferred to Mosaic Pecos LLC on the wellbore schedule.
Completion filings report one formation top, including Yates.
Its lease has reported 34.3K barrels of oil and 20 mcf of gas since January 1993, last reporting in July 2026. The lease carries 17 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
Operator of record
Permitted by Wood, McShane & Thams; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jun 4, 2026 · (432) 250-0250
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mosaic Pecos LLC |
| Production reports | Mosaic Pecos LLCthrough Mar 2021 |
| Latest permit | Wood, McShane & ThamsOct 5, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,800
- total depth, ft
- 1
- permits on file
- Oct 5, 1984
- last permit issued
- Mar 25, 1985
- completed
- 34.3K
- cumulative oil, bbl
- 20
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 25, 1985
- 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 lease this well is completed on; they carry 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Blackmon-Scharff O-10-4769 | Pecos Valley (High Gravity) | Mosaic Pecos LLC | 17 | 34.3K | 20 | Jan 1993 – Jul 2026 |
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.
- 1Wood, McShane & ThamsJan 1993 → Jun 1994
- 2Walbet, Inc.Jul 1994 → Feb 2018
- 3Ogog Operating, LLCMar 2018 → Aug 2019
- 4Mosaic Pecos LLCSep 2019 → Mar 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 253695-99 | Drill | Wood, McShane & Thams | Oct 4, 1984 | Oct 5, 1984 | — | 1,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-4769 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,451 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,642 | 809 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,672 | 1,692 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 452 | 12.25 | 285 S |
| 5.5 | 1,744 | 7.875 | 350 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 | Oct 2, 1985 | Apr 22, 1985 | — |
| 00 | Jun 20, 1985 | Apr 22, 1985 | — |
| 00 | Jun 11, 1985 | — | — |
| 00 | May 16, 1985 | — | — |
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 42-371-35158 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-35158 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 363K
- bbl, all reported
- May 2022
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000057537 | H-1 Injection | Active | 0 | 1,200 | 1,672–0 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/37135158, documented in the API reference.