TEXAS · WELLS · YOUNG COUNTY · CLARK UNIT LEASE · API 42-503-35257 · DISTRICT 7C
Clark Unit #4
Young County · Young County Regular field · Vertical
Clark Unit #4 (API 42-503-35257) is a plugged well in Young County, plugged March 17, 2026, last operated by Sutherland Energy CO. LLC.
The RRC has issued one drilling permit, issued September 2, 1981, permitted to 4,999 ft.
It was permitted by Littlepage, Tommy and has since transferred to Sutherland Energy CO. LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Mc Lester, Mclester, Caddo.
Its lease has reported 588K barrels of oil and 30.6K mcf of gas since May 1995, last reporting volume in April 2026. The lease carries 59 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Littlepage, Tommy; the EWA schedule now lists a different operator.
- Based in
- Bridgeport, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 20, 2026
- Permits on file
- 18
- Phone
- (940) 683-3234
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sutherland Energy Co. LLC |
| Production reports | Sutherland Energy Co., LLCthrough Apr 2026 |
| Latest permit | Littlepage, TommySep 2, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,999
- total depth, ft
- 1
- permits on file
- Sep 2, 1981
- last permit issued
- Oct 5, 1981
- completed
- 588K
- cumulative oil, bbl
- 30.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 1995 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 5, 1981
- Shut in
- —
- Plugged
- Mar 17, 2026
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 59 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Clark Unit O-13-28956 | Young County Regular | Sutherland Energy Co., LLC | 59 | 588K | 30.6K | May 1995 – Apr 2026 |
Oil, barrels lease total
Last 12 months 5,187 · prior 12 3,413(+52%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Remington OilMay 1995 → May 2000
- 2Phoenix Petrocorp, Inc.Jun 2000 → Jun 2019
- 3Sutherland Energy Co., LLCJul 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 131979-99 | Drill | Littlepage, Tommy | Sep 2, 1981 | Sep 2, 1981 | Aug 24, 1981 | 4,999 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 5, 1981 | Clark Unit O-13-28956 | Young County Regular | Sutherland Energy Co. LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Mc Lester | 3,870 |
| McLester | 3,870 |
| Caddo | 3,980 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,872 | 3,880 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 225 | 12.25 | 175 S |
| 4.5 | 4,057 | 7.875 | 100 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 15, 2008 | May 7, 2007 | — |
| 00 | Oct 30, 1995 | Jun 26, 1995 | Yes |
| 00 | Aug 22, 1995 | — | — |
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 42-503-35257 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-503-35257 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/50335257, documented in the API reference.