WELL · 42-311-31449 · DISTRICT 1
Matula Robert #1A
McMullen County · Debby (Mirando UP) field · Vertical
Matula Robert #1A (API 42-311-31449) is a well in Mcmullen County operated by Texas Secondary Oil Corporation, completed May 13, 1980.
The RRC has issued 2 drilling permits between 1980 and 1993, permitted to 1,000 ft.
It was permitted by Harmony Drilling Company, Inc. and has since transferred to Texas Secondary Oil Corporation on the wellbore schedule.
Completion filings report 3 formation tops, including Whitsett, Hockley, Govt Wells.
Its 2 leases have reported 4.6K barrels of oil and 11.5K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Texas Secondary Oil Corporation
Permitted by Harmony Drilling Company, Inc.; the EWA schedule now lists a different operator.
Devine, TX · P-5 Y, filed Aug 4, 2025 · 304 permits on file · (830) 538-4004
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texas Secondary Oil Corporation |
| Production reports | Texas Secondary Oil Corporationthrough Nov 2017 |
| Latest permit | Harmony Drilling Company, Inc.Oct 18, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,000
- total depth, ft
- 2
- permits on file
- Oct 18, 1993
- last permit issued
- May 13, 1980
- completed
- 4.6K
- cumulative oil, bbl
- 11.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 13, 1980
- Shut in
- —
- Plugged
- —
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 2 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Matula, Robert G-1-147066 | Debby (Gov't Wells) | Texas Secondary Oil Corporation | 1 | 0 | 11.4K | Oct 1993 – Jul 2026 |
| Matula, Robert O-1-6365 | Debby (Mirando UP) | Texas Secondary Oil Corporation | 2 | 4.6K | 21 | Jan 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tanos Production, Inc.Jan 1993 → Nov 1994
- 2Harmony Drilling Company, Inc.Oct 1993 → Nov 1994
- 3Texas Secondary Oil CorporationDec 1994 → Nov 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 416929-99 | Recompletion | Harmony Drilling Company, Inc. | Oct 11, 1993 | Oct 18, 1993 | Oct 4, 1993 | 980 |
| 78902-99 | Drill | Mesquite Land & Minerals, Inc. | Apr 22, 1980 | Apr 22, 1980 | — | 1,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-147066 | — | — | — | — |
| — | — O-1-6365 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 265 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Whitsett | 1 | 264 |
| Hockley | 642 | -377 |
| Govt Wells | 900 | -635 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 944 | 949 | Perforated |
| 1,098 | 1,100 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,134 | 6.125 | 106 S |
| 4.5 | 1,134 | — | — |
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 20, 1993 | Oct 25, 1993 | Yes |
| 00 | Nov 9, 1993 | — | — |
| 00 | Jan 12, 1984 | Jun 30, 1980 | — |
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 42-311-31449 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-31449 → 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/31131449, documented in the API reference.