TEXAS · WELLS · ECTOR COUNTY · DIAMOND LIL LEASE · API 42-135-38047 · DISTRICT 7B

Diamond Lil #1

Y

Ector County · Harper (Ellenburger) field · Producing  · Vertical

Diamond Lil #1 (API 42-135-38047) is a well in Ector County operated by Hilcorp Energy Company, completed June 27, 2001 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued March 20, 2001, permitted to 12,483 ft.

It was permitted by Oxy USA Wtp LP and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 3 formation tops, including Fusselman, Montoya, Ellenburger.

Its lease has reported 89.2K barrels of oil and 59.8K mcf of gas since July 2001, last reporting in July 2026.

Operator of record

Hilcorp Energy Company

Permitted by OXY USA WTP LP; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,454
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsOXY USA WTP LPthrough Apr 2026
Latest permitOXY USA WTP LPMar 20, 2001

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

12,483
total depth, ft
1
permits on file
Mar 20, 2001
last permit issued
Jun 27, 2001
completed
89.2K
cumulative oil, bbl
59.8K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2001 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 27, 2001
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Diamond Lil O-10-36719Harper (Ellenburger)Hilcorp Energy Company189.2K59.8KJul 2001 – Jul 2026

Oil, barrels lease total

Last 12 months 2,039 · prior 12 2,070(-1%)

0200400202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

051015202420252026

Chain of custody

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

  1. 1OXY USA WTP LPJul 2001 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
506723-99DrillOXY USA WTP LPMar 20, 2001Mar 20, 2001Mar 28, 200112,600

Completions

CompletedLeaseFieldOperatorStatusDepth
Jun 27, 2001Diamond Lil O-10-36719Harper (Ellenburger)Hilcorp Energy CompanyProducing12,483

Formation tops

As filed on W-2/G-1. Subsea from 3,058 ft elevation.Download CSV →

FormationMD ftSubsea
Fusselman11,356-8,298
Montoya11,406-8,348
Ellenburger12,295-9,237

Perforations

Perforated and open-hole intervals.

FromToType
12,29512,483Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
5.51,2957.8752,950 S
9.6251,50712.25750 S
5.5—7.8753,475 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 1, 2001Sep 5, 2001Yes
00Oct 10, 2001——

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/13538047, documented in the API reference.