WELL · 42-285-33396 · DISTRICT 2
Mertz Gas Unit NO 2 #4
Lavaca County · Word N. (Edwards) field · Producing · Horizontal
Mertz Gas Unit NO 2 #4 (API 42-285-33396) is a horizontal well in Lavaca County operated by Capital Star Oil & Gas Inc., completed October 20, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 31, 2007, permitted to 17,000 ft.
It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Capital Star Oil & Gas Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Wilcox, Midway, Austin Chalk, Edwards.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 19, 2026
- Permits on file
- 49
- Phone
- (713) 554-4620
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Capital Star Oil & Gas Inc. |
| Production reports | Capital Star Oil & Gas, Inc.through Apr 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.May 31, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 17,000
- total depth, ft
- 1
- permits on file
- May 31, 2007
- last permit issued
- Oct 20, 2007
- completed
- 0
- cumulative oil, bbl
- 842K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 20, 2007
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mertz Gas Unit NO 2 G-2-231247 | Word, N. (Edwards) | Capital Star Oil & Gas, Inc. | 1 | 0 | 842K | Oct 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 21,721 · prior 12 20,233(+7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Oct 2007 → Apr 2018
- 2Sulphur River Exploration, Inc.May 2018 → May 2023
- 3Capital Star Oil & Gas, Inc.Jun 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 639192-99 | Drill | Pioneer Natural Res. USA, Inc. | May 17, 2007 | May 31, 2007 | Jun 6, 2007 | 17,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-231247 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 309 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wilcox | 5,800 | -5,491 |
| Midway | 10,297 | -9,988 |
| Austin Chalk | 13,290 | -12,981 |
| Edwards | 13,649 | -13,340 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,938 | 13,939 | Perforated |
| 14,511 | 14,512 | Perforated |
| 15,109 | 15,110 | Perforated |
| 15,680 | 15,681 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 543 | 17.5 | 695 S |
| 9.625 | 3,202 | 12.25 | 1,470 S |
| 5.5 | 14,435 | 8.75 | 1,885 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Dec 27, 2007 | Nov 9, 2007 | Yes |
| 00 | Dec 6, 2007 | — | — |
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.
- Wellbore filings for 42-285-33396 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-285-33396 → scanned completion filings
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/28533396, documented in the API reference.