TEXAS · WELLS · HIDALGO COUNTY · THEISS ET AL GAS UNIT LEASE · API 42-215-33882 · DISTRICT 04

Theiss et al Gas Unit #12

On schedule

Hidalgo County · Javelina (Vicksburg Cons.) field · Producing  · Vertical

Theiss ET AL Gas Unit #12 (API 42-215-33882) is a well in Hidalgo County operated by Merit Energy Company, completed February 26, 2009 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 4, 2008, permitted to 13,390 ft.

It was permitted by Shell Western E&P and has since transferred to Merit Energy Company on the wellbore schedule.

Completion filings report one formation top, including Vicksburg.

Its lease has reported 16.9K barrels of oil and 1.39M mcf of gas since January 2009, last reporting volume in August 2026.

Operator of record

Merit Energy Company

Permitted by Shell Western E&P; the EWA schedule now lists a different operator.

Based in
Dallas, TX
P-5 status
Active (A)
P-5 last filed
Nov 7, 2025
Permits on file
1,049
Phone
(972) 701-8377

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMerit Energy Company
Production reportsMerit Energy Companythrough Aug 2026
Latest permitShell Western E&POct 4, 2008

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

13,390
total depth, ft
1
permits on file
Oct 4, 2008
last permit issued
Feb 26, 2009
completed
16.9K
cumulative oil, bbl
1.39M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · JAN 2009 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 26, 2009
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.

Loading the map…

Open the full map →

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Theiss et al Gas Unit G-4-247251Javelina (Vicksburg Cons.)Merit Energy Company116.9K1.39MJan 2009 – Aug 2026

Gas, mcf lease total

Last 12 months 24,428 · prior 12 20,747(+18%)

01K2K3K202420252026

Wells named Theiss et al Gas Unit

Merit Energy Company's other wells filed under this lease name in Hidalgo 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

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

  1. 1Shell Western E&PJan 2009 → Apr 2011
  2. 2OXY USA Inc.May 2011 → Apr 2017
  3. 3Merit Energy CompanyMay 2017 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
671677-99DrillShell Western E&PSep 23, 2008Oct 4, 2008Oct 27, 200815,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Feb 26, 2009Theiss et al Gas Unit G-4-247251Javelina (Vicksburg Cons.)Merit Energy CompanyProducing13,390

Formation tops

As filed on W-2/G-1. Subsea from 327 ft elevation.Download CSV →

FormationMD ftSubsea
VicksburgVICKSBURG W BASE12,041-11,714
VicksburgVICKSBURG X12,279-11,952
VicksburgVICKSBURG Y12,980-12,653

Perforations

Perforated and open-hole intervals.

FromToType
12,28412,354Perforated
12,43812,442Perforated
12,99213,030Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,48814.751,833 S
7.6259,1379.875839 S
3.513,3736.5904 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
00Jun 5, 2009Mar 12, 2009—
00Jun 3, 2009Feb 20, 2009Yes
00May 22, 2009——

Well logs

1 log loaded from the RRC's log index, the latest received Nov 22, 2011. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans VicksburgTIFF9,130 to 13,393Nov 22, 2011run Nov 19, 20081.49

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/21533882, documented in the API reference.