TEXAS · WELLS · YOAKUM COUNTY · ROBERTS UNIT LEASE · API 42-501-35914 · DISTRICT 7B

Roberts Unit #3681W

On schedule

Yoakum County · Wasson field · Injection  · Vertical

Roberts Unit #3681W (API 42-501-35914) is a well in Yoakum County operated by Hilcorp Energy Company, completed April 3, 2023 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued January 18, 2012, permitted to 5,352 ft.

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

Completion filings report 6 formation tops, including Rustler, Yates, Seven Rivers, Queen.

Its lease has reported 18.4M barrels of oil and 12.3M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 623 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit.

Operator of record

Hilcorp Energy Company

Permitted by Apache Corporation; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Mar 27, 2026
Permits on file
3,459
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Aug 2026
Latest permitApache CorporationJan 18, 2012

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

5,352
total depth, ft
1
permits on file
Jan 18, 2012
last permit issued
Apr 3, 2023
completed
18.4M
cumulative oil, bbl
12.3M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 3, 2023
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 623 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Roberts Unit O-11-19212WassonHilcorp Energy Company62318.4M12.3Mby Jan 1993 – Aug 2026

Oil, barrels lease total

Last 12 months 420,313 · prior 12 441,242(-5%)

020K40K60K202420252026

Gas, mcf lease total

Last 12 months 1,160,425 · prior 12 692,219(+68%)

0100K200K202420252026

Wells named Roberts Unit

Hilcorp Energy Company's other wells filed under this lease name in Yoakum County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

Operator on the lease's P-4

Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.

OperatorFromTo
Hilcorp Energy CompanyDec 31, 2024today
Apache CorporationMar 1, 1995Dec 31, 2024

Reporting production

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

  1. 1Texaco E & P Inc.Jan 1993 → Feb 1995
  2. 2Apache CorporationMar 1995 → Nov 2024
  3. 3Hilcorp Energy CompanyDec 2024 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
731396-99DrillApache CorporationJan 10, 2012Jan 18, 2012Jun 18, 20125,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 3, 2023Roberts Unit O-11-19212WassonHilcorp Energy CompanyInjection5,352

Formation tops

As filed on W-2/G-1. Subsea from 3,630 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler2,1781,452
Yates2,899731
Seven Rivers3,180450
Queen3,744-114
Grayburg4,131-501
San Andres4,373-743

Perforations

Perforated and open-hole intervals.

FromToType
4,9845,164Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,15012.25975 S
5.55,3527.875950 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jul 26, 2023Apr 21, 2023—
00Oct 25, 2013Nov 7, 2012—

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
994K
bbl, all reported
Sep 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000104814H-1 InjectionActive2,5002,2004,400–5,350

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

Last 12 months 0 · prior 12 0

0120242025

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/50135914, documented in the API reference.