WELL · 42-003-37266 · DISTRICT 8
Parker Unit #4
Andrews County · Parker (Wolfcamp) field · Vertical
Parker Unit #4 (API 42-003-37266) is a well in Andrews County operated by Chevron Midcontinent L.P., completed August 4, 1993.
The RRC has issued one drilling permit, issued June 23, 1993, permitted to 9,710 ft.
It was permitted by Union Oil Company Of California and has since transferred to Chevron Midcontinent L.P. on the wellbore schedule.
Completion filings report 8 formation tops, including Yates, W.C. Reef, Wolfcamp, Pennsylvanian.
Its 3 leases have reported 5.49M barrels of oil and 8.97M mcf of gas since August 1993, last reporting in July 2026. The leases carry 205 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 312K barrels injected in the 12 months reported through February 2026.
Operator of record
Permitted by Union Oil Company of California; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Jan 4, 2026 · 173 permits on file · (800) 231-0623
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chevron Midcontinent L.P. |
| Production reports | Morningstar Operating LLCthrough Apr 2026 |
| Latest permit | Union Oil Company of CaliforniaJun 23, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,710
- total depth, ft
- 1
- permits on file
- Jun 23, 1993
- last permit issued
- Aug 4, 1993
- completed
- 5.49M
- cumulative oil, bbl
- 8.97M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 4, 1993
- 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 205 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Parker Unit O-10-40946 | Parker (Wolfcamp Consolidated) | Morningstar Operating LLC | 92 | 1.05M | 1.37M | Oct 2011 – Jul 2026 |
| Parker Unit O-10-34306 | Parker (Wolfcamp) | Chevron Midcontinent, L.P. | 112 | 4.4M | 7.56M | Sep 1994 – Feb 2012 |
| Parker, Bessie O. O-10-33925 | Parker (Wolfcamp) | Union Oil Company of California | 1 | 38.8K | 39.3K | Aug 1993 – Nov 1994 |
Oil, barrels lease total
Last 12 months 56,734 · prior 12 60,661(-6%)
Gas, mcf lease total
Last 12 months 20,000 · prior 12 75,119(-73%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Oil Company of CaliforniaAug 1993 → May 2000
- 2Pure Resources, L.P.Jun 2000 → Mar 2006
- 3Chevron Midcontinent, L.P.Apr 2006 → Dec 2021
- 4Morningstar Partners, L.P.Jan 2022 → Apr 2022
- 5Morningstar Operating LLCMay 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 413056-99 | Drill | Union Oil Company of California | Jun 22, 1993 | Jun 23, 1993 | Jun 26, 1993 | 9,710 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-33925 | — | — | — | — |
| — | — O-10-34306 | — | — | — | — |
| — | — O-10-40946 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,201 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,150 | 51 |
| W.C. Reef | 8,574 | -5,373 |
| Wolfcamp | 8,574 | -5,373 |
| PennsylvanianPENN | 8,735 | -5,534 |
| PennsylvanianPENN DETRITAL | 8,735 | -5,534 |
| PennsylvanianPENN LIME | 8,912 | -5,711 |
| Canyon | 9,080 | -5,879 |
| LWR Canyon | 9,292 | -6,091 |
| Strawn | 9,372 | -6,171 |
| Atoka | 9,686 | -6,485 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,580 | 8,660 | Perforated |
| 8,580 | 8,859 | Perforated |
| 8,752 | 9,603 | Perforated |
| 8,994 | 9,192 | Perforated |
| 9,480 | 9,603 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 370 | 17.5 | 475 S |
| 8.625 | 6,000 | 11 | 700 S |
| 5.5 | 9,742 | 7.875 | 1,055 S |
| 5.5 | 9,742 | — | 1,055 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 4, 2015 | May 6, 2015 | — |
| 00 | Dec 1, 2011 | Aug 5, 1996 | — |
| 00 | May 16, 1997 | Aug 5, 1996 | — |
| 00 | Nov 8, 1994 | Aug 24, 1993 | Yes |
| 00 | Sep 20, 1993 | Aug 24, 1993 | Yes |
| 00 | Aug 31, 1993 | — | — |
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 42-003-37266 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-37266 → 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
- 312K
- bbl, last 12 reported months
- 3.36M
- bbl, all reported
- Feb 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000082156 | H-1 Injection | Active | 2,500 | 3,000 | 8,364–9,686 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 311,557 · prior 12 418,493(-26%)
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/00337266, documented in the API reference.