WELL · 42-393-30260 · DISTRICT 10

Fields-Mahler #3-98

N

Roberts County · Mendota NW. (Granite Wash SW.) field  · Vertical

Fields-Mahler #3-98 (API 42-393-30260) is a well in Roberts County operated by Pioneer Production Corp., completed February 23, 1978.

The RRC has issued one drilling permit, issued December 15, 1977, permitted to 10,500 ft.

It was permitted by Amarillo Oil CO. and has since transferred to Pioneer Production Corp. on the wellbore schedule.

Completion filings report 5 formation tops, including Heavner, Kansas City, Oswego, Granite Wash.

Its lease has reported 177K barrels of oil and 3.13M mcf of gas since January 1993, last reporting in July 2026. The lease carries 9 wells, so these are lease totals, not this well alone.

Operator of record

Pioneer Production Corp.

Permitted by Amarillo Oil Co.; the EWA schedule now lists a different operator.

Amarillo, TX · P-5 Y, filed Jul 15, 1986 · 110 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePioneer Production Corp.
Production reportsMmgl Txph, LLCthrough Apr 2026
Latest permitAmarillo Oil Co.Dec 15, 1977

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

10,500
total depth, ft
1
permits on file
Dec 15, 1977
last permit issued
Feb 23, 1978
completed
177K
cumulative oil, bbl
3.13M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 23, 1978
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; they carry 9 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mahler, Fields O-14-5811Mendota, NW. (Granite Wash, SW.)Mmgl Txph, LLC9177K3.13MJan 1993 – Jul 2026

Gas, mcf lease total

Last 12 months 29,760 · prior 12 30,363(-2%)

05K10K202420252026

Oil, barrels lease total

Last 12 months 1,227 · prior 12 1,296(-5%)

0100200300202420252026

Chain of custody

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

  1. 1Seagull Midcon Inc.Jan 1993 → May 1998
  2. 2Seagull Energy E&P Inc.Jun 1998 → Oct 2000
  3. 3Ocean Energy, Inc.Nov 2000 → Aug 2003
  4. 4Devon Louisiana CorporationSep 2003 → Dec 2005
  5. 5Devon Energy Production Co, L.P.Jan 2006 → Jun 2016
  6. 6Tecolote Energy Operating, LLCJul 2016 → Dec 2019
  7. 7Blackbeard Operating, LLCJan 2020 → Sep 2023
  8. 8Mmgl Txph, LLCOct 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
14152-99DrillAmarillo Oil Co.Dec 15, 1977Dec 15, 1977Dec 20, 197710,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-14-5811————

Formation tops

As filed on W-2/G-1. Subsea from 2,718 ft elevation.Download CSV →

FormationMD ftSubsea
Heavner6,764-4,046
Kansas City7,868-5,150
Oswego8,720-6,002
Granite Wash9,072-6,354
Atoka10,340-7,622

Perforations

Perforated and open-hole intervals.

FromToType
9,2049,638Perforated
9,2049,851Perforated
9,7359,851Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,90012.252,000 sx
4.510,0007.875320 sx

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
00Jul 11, 1984Jun 20, 1984—
00Jul 6, 1984Jun 20, 1984—
00Jan 12, 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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/39330260, documented in the API reference.