WELL · 42-461-32010 · DISTRICT 7

Mobil-TXL #1

N

Upton County · Pegasus S. (Bend) field  · Vertical

Mobil-Txl #1 (API 42-461-32010) is a well in Upton County operated by Cox John L., completed May 4, 1983.

The RRC has issued 2 drilling permits between 1983 and 1984, permitted to 11,000 ft.

Completion filings report 5 formation tops, including Cretaceous, Spraberry, Dean, Strawn.

Its lease has reported 53.8K barrels of oil and 147K mcf of gas since January 1993, last reporting in July 2026.

Operator of record

Cox John L.

Based in
Midland, TX
P-5 status
Inactive (I)
P-5 last filed
Mar 21, 2003
Permits on file
1,123
Phone
(432) 682-9435

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCox John L.
Production reportsPioneer Natural Res. USA, Inc.through Apr 2026
Latest permitCox, John L.Sep 19, 1984

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,000
total depth, ft
2
permits on file
Sep 19, 1984
last permit issued
May 4, 1983
completed
53.8K
cumulative oil, bbl
147K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 4, 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 lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mobil-TXL O-9-11018Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.153.8K147KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 1,236 · prior 12 1,295(-5%)

0100200300202420252026

Gas, mcf lease total

Last 12 months 2,321 · prior 12 2,652(-12%)

0200400600202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Cox, John L.Jan 1993 → Sep 2003
  2. 2JM Cox Resources, L.P.Oct 2003 → Jul 2018
  3. 3DE3 Operating LLCAug 2018 → May 2021
  4. 4Pioneer Natural Res. USA, Inc.Jun 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
251890-99RecompletionCox, John L.Sep 13, 1984Sep 19, 1984—9,350
190056-99DrillCox, John L.Mar 31, 1983Mar 31, 1983Apr 8, 198311,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-11018————

Formation tops

As filed on W-2/G-1. Subsea from 2,841 ft elevation.Download CSV →

FormationMD ftSubsea
Cretaceous3502,491
SpraberryUPPER SPRABERRY7,720-4,879
SpraberryLOWER SPRABERRY8,400-5,559
Dean8,870-6,029
Strawn10,176-7,335
Bend10,487-7,646

Perforations

Perforated and open-hole intervals.

FromToType
7,7227,948Perforated
8,4008,676Perforated
8,8959,280Perforated
10,52610,602Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37541517.5400 S
8.6254,905111,000 S
2.37510,060——
4.510,6707.8751,400 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Nov 30, 1984Nov 12, 1984—
00Nov 17, 1984——
00Jan 12, 1984May 10, 1983—

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.

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.

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/46132010, documented in the API reference.