TEXAS · WELLS · YOAKUM COUNTY · API 42-501-34589 · DISTRICT 7B

Cornell Unit #6387GC

Y

Yoakum County · Wasson field · Injection  · Vertical

Cornell Unit #6387GC (API 42-501-34589) is a well in Yoakum County operated by Hilcorp Energy Company, completed March 6, 2015 and listed as injection on the RRC schedule.

The RRC has issued 2 drilling permits (amended once) between 2001 and 2014, permitted to 5,340 ft.

It was permitted by Xto Energy Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 3 formation tops, including Rustler, Yates, San Andres.

Its 2 leases have reported 20.3M barrels of oil and 35.4M mcf of gas since January 1993, last reporting in July 2026. The leases carry 269 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 18.1K barrels injected in the 12 months reported through September 2025.

Operator of record

Hilcorp Energy Company

Permitted by XTO Energy Inc.; 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 scheduleXTO Energy Inc.
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitXTO Energy Inc.Nov 25, 2014

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

5,340
total depth, ft
3
permits on file
Nov 25, 2014
last permit issued
Mar 6, 2015
completed
20.3M
cumulative oil, bbl
35.4M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 6, 2015
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 2 leases this well is completed on; they carry 269 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cornell Unit O-11-19453WassonHilcorp Energy Company26820.3M35.4MJan 1993 – Jul 2026
Cornell Unit G-11-188933WassonXTO Energy Inc.100Mar 2002 – Mar 2015

Oil, barrels lease total

Last 12 months 486,391 · prior 12 408,638(+19%)

020K40K60K202420252026

Gas, mcf lease total

Last 12 months 594,808 · prior 12 645,030(-8%)

050K100K202420252026

Chain of custody

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

  1. 1Exxon Corp.Jan 1993 → Mar 2000
  2. 2Exxon Mobil CorporationApr 2000 → Jul 2000
  3. 3Cross Timbers Operating CompanyAug 2000 → May 2001
  4. 4XTO Energy Inc.Jun 2001 → Mar 2025
  5. 5Hilcorp Energy CompanyApr 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
797724-99RecompletionXTO Energy Inc.Oct 3, 2014Nov 25, 2014Feb 2, 20155,600
510448-98DrillXTO Energy Inc.Apr 27, 2007Jun 19, 2001Oct 28, 20015,400
510448-99DrillXTO Energy Inc.Jun 19, 2001Jun 19, 2001Oct 28, 20015,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 6, 2015Cornell Unit O-11-19453WassonHilcorp Energy CompanyInjection5,340
Mar 18, 2002Cornell Unit G-11-188933WassonXTO Energy Inc.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 3,576 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler2,1471,429
Yates2,884692
San Andres4,603-1,027

Perforations

Perforated and open-hole intervals.

FromToType
4,6674,729Perforated
4,8225,241Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,16312.25950 S
74,7658.75750 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
00Jun 22, 2015Apr 15, 2015—
00Sep 4, 2002Apr 17, 2002Yes
00Jun 11, 2002——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

18.1K
bbl, last 12 reported months
2.71M
bbl, all reported
Sep 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000110865H-1 InjectionActive2,0002,1504,300–5,500

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 18,073 · prior 12 252,101(-93%)

020K40K20242025

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/50134589, documented in the API reference.