WELL · 42-211-33532 · DISTRICT 10

Ross #1271

Y

Hemphill County · Hemphill (Granite Wash.) field · Producing  · Vertical

Ross #1271 (API 42-211-33532) is a well in Hemphill County operated by Mountainside Energy Operating L, completed March 13, 2008 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued March 28, 2006, permitted to 12,800 ft.

It was permitted by Cimarex Energy CO. and has since transferred to Mountainside Energy Operating L on the wellbore schedule.

Completion filings report one formation top, including Granite Wash.

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

Operator of record

Mountainside Energy Operating L

Permitted by Cimarex Energy Co.; the EWA schedule now lists a different operator.

Dallas, TX · P-5 Y, filed Jan 21, 2026 · (855) 906-6868

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMountainside Energy Operating L
Production reportsMountainside Energy Operating, Lthrough Mar 2026
Latest permitCimarex Energy Co.Mar 28, 2006

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

12,800
total depth, ft
1
permits on file
Mar 28, 2006
last permit issued
Mar 13, 2008
completed
0
cumulative oil, bbl
874K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 13, 2008
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
Ross G-14-235907Hemphill (Granite Wash.)Mountainside Energy Operating, L10874KMar 2008 – Jul 2026

Gas, mcf lease total

Last 12 months 15,188 · prior 12 26,605(-43%)

01K2K3K202420252026

Chain of custody

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

  1. 1Cimarex Energy Co.Mar 2008 → Mar 2008
  2. 2Chevron U. S. A. Inc.Apr 2008 → Nov 2016
  3. 3Pantera Energy CompanyDec 2016 → Jul 2021
  4. 4Highmark Energy Operating, LLCAug 2021 → Jan 2026
  5. 5Mountainside Energy Operating, LFeb 2026 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
615041-99DrillCimarex Energy Co.Mar 1, 2006Mar 28, 2006Dec 26, 200712,800

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-14-235907————

Formation tops

As filed on W-2/G-1. Subsea from 2,753 ft elevation.Download CSV →

FormationMD ftSubsea
Granite WashGRANITE WASH B10,996-8,243
Granite WashGRANITE WASH E SHALE11,533-8,780
Granite WashGRANITE WASH G11,918-9,165

Perforations

Perforated and open-hole intervals.

FromToType
10,79110,887Perforated
10,95811,062Perforated
11,13011,275Perforated
11,41911,467Perforated
11,53711,785Perforated
12,03412,282Perforated
12,35312,364Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,490111,250 S
5.512,8007.875310 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
00Jul 7, 2008Apr 30, 2008Yes
00Jun 11, 2008——

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.

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/21133532, documented in the API reference.