WELL · 42-317-38764 · DISTRICT 8

Heidelberg A #1

Y

Martin County · Spraberry (Trend Area) field · Producing  · Vertical

Heidelberg A #1 (API 42-317-38764) is a well in Martin County operated by Prime Operating Company, completed August 28, 2013 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued July 24, 2013, permitted to 12,000 ft.

It was permitted by Endeavor Energy Resources L.P. and has since transferred to Prime Operating Company on the wellbore schedule.

Completion filings report 6 formation tops, including San Andres, Spraberry, Dean, Strawn.

Its lease has reported 37.3K barrels of oil and 168K mcf of gas since August 2013, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Prime Operating Company

Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active (A)
P-5 last filed
Jan 29, 2026
Permits on file
595
Phone
(432) 682-5600

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePrime Operating Company
Production reportsPrime Operating Companythrough Apr 2026
Latest permitEndeavor Energy Resources L.P.Jul 24, 2013

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

12,000
total depth, ft
1
permits on file
Jul 24, 2013
last permit issued
Aug 28, 2013
completed
37.3K
cumulative oil, bbl
168K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 28, 2013
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Heidelberg A O-10-46728Spraberry (Trend Area)Prime Operating Company237.3K168KAug 2013 – Jul 2026

Oil, barrels lease total

Last 12 months 1,485 · prior 12 2,639(-44%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 4,413 · prior 12 6,853(-36%)

05001K202420252026

Chain of custody

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

  1. 1Prime Operating CompanyOct 2013 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
765504-99DrillEndeavor Energy Resources L.P.Jun 26, 2013Jul 24, 2013Jul 30, 201312,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-46728————

Formation tops

As filed on W-2/G-1. Subsea from 2,631 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres4,825-2,194
Spraberry6,925-4,294
Dean8,347-5,716
Strawn8,640-6,009
Wolfcamp9,848-7,217
Mississippian10,126-7,495

Perforations

Perforated and open-hole intervals.

FromToType
6,9257,425Perforated
8,3478,460Perforated
8,64010,012Perforated
10,12610,727Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37533917.5315 S
8.6254,76811650 S
4.510,9547.8751,275 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
00Sep 11, 2015Jun 23, 2015Yes

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/31738764, documented in the API reference.