WELL · 42-335-32638 · DISTRICT 8
Darby Oil Co. & CRAWFORD#1 T. E. #4
Mitchell County · Sharon Ridge (1700) field · Vertical
Darby Oil CO. & Crawford#1 T. E. #4 (API 42-335-32638) is a well in Mitchell County operated by Schlachter Operating Corporation, completed December 8, 1983.
The RRC has issued one drilling permit, issued October 26, 1983, permitted to 1,800 ft.
It was permitted by Staley Oil Company and has since transferred to Schlachter Operating Corporation on the wellbore schedule.
Completion filings report one formation top, including T/San Andres.
Its 2 leases have reported 983K barrels of oil and 21 mcf of gas since January 1993, last reporting in July 2026. The leases carry 116 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 13K barrels injected in the 12 months reported through July 2025.
Operator of record
Schlachter Operating Corporation
Permitted by Staley Oil Company; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jul 4, 2026 · 65 permits on file · (214) 663-0270
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Schlachter Operating Corporation |
| Production reports | Schlachter Operating Corporationthrough Apr 2026 |
| Latest permit | Staley Oil CompanyOct 26, 1983 |
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 26, 1983
- last permit issued
- Dec 8, 1983
- completed
- 983K
- 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
- Dec 8, 1983
- 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 2 leases this well is completed on; they carry 116 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Crawford-Strain Unit O-11-68448 | Sharon Ridge (1700) | Schlachter Operating Corporation | 112 | 956K | 0 | Aug 2002 – Jul 2026 |
| Darby Oil Co. & CRAWFORD#1 T. E. O-11-5792 | Sharon Ridge (1700) | Schlachter Operating Corporation | 4 | 26.9K | 21 | Jan 1993 – Nov 2002 |
Oil, barrels lease total
Last 12 months 31,268 · prior 12 29,224(+7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Staley Oil CompanyJan 1993 → Oct 1999
- 2Schlachter, David A., Estate OFNov 1999 → Jan 2000
- 3Schlachter Operating CorporationFeb 2000 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 218596-99 | Drill | Staley Oil Company | Oct 24, 1983 | Oct 26, 1983 | Nov 25, 1983 | 1,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-5792 | — | — | — | — |
| — | — O-11-68448 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,254 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/San Andres | 1,530 | 724 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,670 | 1,745 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 532 | 12.25 | 300 S |
| 5.5 | 1,806 | 7.875 | 450 S |
| 5.5 | 1,808 | 7.875 | 450 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 17, 2010 | Aug 31, 2009 | — |
| 00 | Aug 5, 2002 | Jan 30, 1984 | — |
| 00 | Feb 29, 1984 | Jan 30, 1984 | — |
| 00 | Feb 17, 1984 | Jan 30, 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 42-335-32638 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-335-32638 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 13K
- bbl, last 12 reported months
- 522K
- bbl, all reported
- Jul 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000101014 | H-1 Injection | Active | 300 | 820 | 1,670–1,745 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 13,039 · prior 12 13,264(-2%)
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/33532638, documented in the API reference.