WELL · 42-003-33226 · DISTRICT 8

Cso-Arco #1

Y

Andrews County · Shafter Lake (San Andres) field · Injection  · Vertical

Cso-Arco #1 (API 42-003-33226) is a well in Andrews County operated by Highmark Energy Operating LLC, completed October 1, 1983 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued May 21, 1982, permitted to 7,000 ft.

It was permitted by Transierra Exploration Corp. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.

No lease production has been reported under this well’s leases.

It holds an active disposal or injection permit, with 45.2K barrels injected in the 12 months reported through March 2026.

Operator of record

Highmark Energy Operating LLC

Permitted by Transierra Exploration Corp.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 4, 2025 · 23 permits on file · (903) 876-2591

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHighmark Energy Operating LLC
Production reportsnone
Latest permitTransierra Exploration Corp.May 21, 1982

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

7,000
total depth, ft
1
permits on file
May 21, 1982
last permit issued
Oct 1, 1983
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 1, 1983
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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
Cso-Arco O-10-27753Shafter Lake (San Andres)Highmark Energy Operating, LLC100Jan 1993 – Jul 2026

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
161546-99DrillTransierra Exploration Corp.May 21, 1982May 21, 1982May 26, 19827,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-27753————

Perforations

Perforated and open-hole intervals.

FromToType
4,2284,421Perforated
5,5785,638Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,86912.25850 S
2.3754,435——
4.57,0007.875725 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
00May 17, 1989Apr 20, 1989—
00Jan 12, 1984Oct 22, 1982—

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

45.2K
bbl, last 12 reported months
2.89M
bbl, all reported
Mar 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000048229W-14 DisposalActive2,0002,2504,500–5,700

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

Last 12 months 45,201 · prior 12 35,160(+29%)

02K4K6K20252026

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/00333226, documented in the API reference.