TEXAS · WELLS · ZAPATA COUNTY · ARNULFO MARTINEZ ET AL GAS UNIT LEASE · API 42-505-33863 · DISTRICT 04
Arnulfo Martinez et al Gas Unit #1
Zapata County · Cisco-Benavides (Lobo Cons.) field · Vertical
- Fields on the latest permit · any of 2
- Francisco (Lobo 8200) · Francisco (Lobo 9500)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Arnulfo Martinez ET AL Gas Unit #1 (API 42-505-33863) is a plugged well in Zapata County, plugged August 16, 2012, last operated by Chevron U. S. A. Inc..
The RRC has issued one drilling permit, issued October 13, 1998, permitted to 10,650 ft.
Completion filings report one formation top, including Lobo Unconformity.
Its lease has reported 55 barrels of oil and 1.67M mcf of gas since December 1998, with no volume in the three years through April 2026.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 30, 2026
- Permits on file
- 9,294
- Phone
- (866) 212-1212
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chevron U. S. A. Inc. |
| Production reports | Chevron U. S. A. Inc.through Nov 2011 |
| Latest permit | Chevron U. S. A. Inc.Oct 13, 1998 |
- 10,650
- total depth, ft
- 1
- permits on file
- Oct 13, 1998
- last permit issued
- Mar 2, 1999
- completed
- 55
- cumulative oil, bbl
- 1.67M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1998 THROUGH Nov 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 2, 1999
- Shut in
- —
- Plugged
- Aug 16, 2012
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 |
|---|---|---|---|---|---|---|
| Arnulfo Martinez et al Gas Unit G-4-172810 | Cisco-Benavides (Lobo Cons.) | Chevron U. S. A. Inc. | 1 | 55 | 1.67M | Dec 1998 – Nov 2011 |
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.
- 1Chevron U. S. A. Inc.Dec 1998 → Nov 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 480146-99 | Drill | Chevron U. S. A. Inc. | Oct 13, 1998 | Oct 13, 1998 | Nov 1, 1998 | 10,650 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 2, 1999 | Arnulfo Martinez et al Gas Unit G-4-172810 | Cisco-Benavides (Lobo Cons.) | Chevron U. S. A. Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 369 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Unconformity | 7,810 | -7,441 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,819 | 7,824 | Perforated |
| 7,970 | 7,980 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,093 | 12.25 | 415 S |
| 7 | 6,688 | 8.75 | 250 S |
| 2.875 | 9,638 | 6.125 | 550 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 1, 1999 | Apr 20, 1999 | — |
| 00 | May 27, 1999 | Feb 26, 1999 | Yes |
| 00 | May 13, 1999 | — | — |
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 42-505-33863 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-33863 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/50533863, documented in the API reference.