TEXAS · WELLS · WARD COUNTY · WARWINK UNIVERSITY "18-33" -A- LEASE · API 42-475-34528 · DISTRICT 7B
Warwink University 18-33 -A- #4
Ward County · War-Wink W. (Wolfcamp) field · Vertical
Warwink University 18-33 -A- #4 (API 42-475-34528) is a plugged well in Ward County, plugged March 13, 2025, last operated by Apache Corporation.
The RRC has issued one drilling permit, issued November 20, 1997, permitted to 11,800 ft.
It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 8 formation tops, including Rustler, Salt, Delaware, Manzanita.
Its lease has reported 633K barrels of oil and 1.21M mcf of gas since May 1997, last reporting volume in January 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 9,758
- Phone
- (713) 954-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Jan 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.Nov 20, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,800
- total depth, ft
- 1
- permits on file
- Nov 20, 1997
- last permit issued
- Mar 25, 1998
- completed
- 633K
- cumulative oil, bbl
- 1.21M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · MAY 1997 THROUGH JAN 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 25, 1998
- Shut in
- —
- Plugged
- Mar 13, 2025
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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Warwink University "18-33" -A- O-10-35349 | War-Wink, W. (Wolfcamp) | Apache Corporation | 7 | 633K | 1.21M | May 1997 – Jan 2026 |
Oil, barrels lease total
Last 12 months 449 · prior 12 545(-18%)
Gas, mcf lease total
Last 12 months 2,725 · prior 12 2,817(-3%)
Wells named Warwink University 18-33 -A-
Apache Corporation's other wells filed under this lease name in Ward County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker & Parsley Development L.PMay 1997 → Aug 1997
- 2Pioneer Natural Res. USA, Inc.Sep 1997 → Jun 1999
- 3Prize Operating CompanyJul 1999 → Mar 2002
- 4Gruy Petroleum Management Co.Apr 2002 → Apr 2006
- 5Cimarex Energy Co. of ColoradoMay 2006 → Aug 2018
- 6Callon Petroleum Operating CoSep 2018 → Jul 2024
- 7Apache CorporationAug 2024 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 470338-99 | Drill | Pioneer Natural Res. USA, Inc. | Nov 20, 1997 | Nov 20, 1997 | Jan 24, 1998 | 11,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 25, 1998 | Warwink University 18-33 -A- O-10-35349 | War-Wink W. (Wolfcamp) | Apache Corporation | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,832 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 815 | 2,017 |
| Salt | 1,050 | 1,782 |
| Delaware | 5,135 | -2,303 |
| Manzanita | 6,300 | -3,468 |
| Brushy Canyon | 7,355 | -4,523 |
| Bone Sprg | 8,660 | -5,828 |
| 3RD Bone Sprg | 10,850 | -8,018 |
| 3RD Bone Sprg Por | 11,325 | -8,493 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,314 | 11,442 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 815 | 14.75 | 450 S |
| 8.625 | 5,015 | 11 | 400 S |
| 5.5 | 11,286 | 7.875 | 1,375 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 | Aug 12, 1998 | Jul 6, 1998 | Yes |
| 00 | Jul 31, 1998 | — | — |
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 42-475-34528 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-475-34528 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/47534528, documented in the API reference.