TEXAS · WELLS · MATAGORDA COUNTY · API 42-321-31843 · DISTRICT 03
Sliva Gas Unit #1X
Matagorda County · Nance (Tex-Miss # 5) field · Vertical
Sliva Gas Unit #1X (API 42-321-31843) is a plugged well in Matagorda County, plugged May 16, 2013, last operated by Unit Petroleum Company.
The RRC has issued 3 drilling permits (amended once) between 2000 and 2002, permitted to 11,400 ft.
Completion filings report 3 formation tops, including Miocene (undifferentiated), Frio, Top Of Lwr Frio.
Its 3 leases have reported 9K barrels of oil and 980K mcf of gas since October 2000, with no volume in the three years through April 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Tulsa, OK
- P-5 status
- Active (A)
- P-5 last filed
- Jan 13, 2025
- Permits on file
- 1,100
- Phone
- (918) 493-7700
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unit Petroleum Company |
| Production reports | Unit Petroleum Companythrough May 2013 |
| Latest permit | Unit Petroleum CompanyNov 4, 2002 |
- 11,400
- total depth, ft
- 4
- permits on file
- Nov 4, 2002
- last permit issued
- Oct 23, 2002
- completed
- 9K
- cumulative oil, bbl
- 980K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2000 THROUGH May 2013
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 23, 2002
- Shut in
- —
- Plugged
- May 16, 2013
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 3 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 |
|---|---|---|---|---|---|---|
| Sliva Gas Unit G-3-191642 | Nance (Tex-Miss # 5) | Unit Petroleum Company | 1 | 374 | 140K | Oct 2002 – May 2013 |
| Sliva Gas Unit G-3-185963 | Nance (Tex-Miss # 8) | Unit Petroleum Company | 1 | 1.79K | 261K | Nov 2001 – Oct 2002 |
| Silva Gas Unit G-3-180728 | Nance (Tex-Miss #10) | Unit Petroleum Company | 1 | 6.84K | 579K | Oct 2000 – Nov 2001 |
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.
- 1Unit Petroleum CompanyOct 2000 → May 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 525236-99 | Recompletion | Unit Petroleum Company | Nov 4, 2002 | Nov 4, 2002 | Sep 27, 2001 | 11,250 |
| 515715-99 | Recompletion | Unit Petroleum Company | Nov 29, 2001 | Nov 29, 2001 | Nov 6, 2001 | 11,250 |
| 498812-98 | Drill | Unit Petroleum Company | Nov 6, 2000 | Aug 24, 2000 | — | 11,250 |
| 498812-99 | Drill | Unit Petroleum Company | Aug 24, 2000 | Aug 24, 2000 | Aug 28, 2000 | 11,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 23, 2002 | Sliva Gas Unit G-3-191642 | Nance (Tex-Miss # 5) | Unit Petroleum Company | Plugged | — |
| Nov 11, 2001 | Sliva Gas Unit G-3-185963 | Nance (Tex-Miss # 8) | Unit Petroleum Company | Plugged | — |
| Oct 13, 2000 | Silva Gas Unit G-3-180728 | Nance (Tex-Miss #10) | Unit Petroleum Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 55 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)BASE OF MIOCENE | 6,050 | -5,995 |
| FrioTOP OF FRIO | 7,250 | -7,195 |
| FrioTOP OF LOWER FRIO | 9,950 | -9,895 |
| Top of LWR Frio | 9,950 | -9,895 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,952 | 9,982 | Perforated |
| 10,417 | 10,424 | Perforated |
| 10,501 | 10,512 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,500 | 12.25 | 960 S |
| 7 | 10,480 | 8.75 | 390 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 | Jan 16, 2003 | Nov 7, 2002 | Yes |
| 00 | Dec 4, 2002 | — | — |
| 00 | Dec 27, 2001 | Dec 3, 2001 | Yes |
| 00 | Dec 12, 2001 | — | — |
| 00 | Mar 27, 2001 | Jan 26, 2001 | Yes |
| 00 | Feb 12, 2001 | — | — |
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 42-321-31843 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-31843 → 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/32131843, documented in the API reference.