WELL · 42-475-31951 · DISTRICT 8
Mathews #1D
Ward County · Vertical
Mathews #1D (API 42-475-31951) is a former disposal or injection well in Ward County, last operated by Blair, Jack N.; its UIC permit is no longer active.
The RRC has issued 2 drilling permits between 1979 and 1986, permitted to 6,600 ft.
Completion filings report 3 formation tops, including Ramsey, Bell Canyon, Cherry Canyon.
Its 2 leases have reported 152K barrels of oil and 70.9K mcf of gas since January 1993, last reporting in December 2018. The leases carry 15 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Nov 8, 2002 · 70 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | OXY USA Inc.through Oct 2016 |
| Latest permit | Blair, Jack N.Mar 20, 1986 |
- 6,600
- total depth, ft
- 2
- permits on file
- Mar 20, 1986
- last permit issued
- —
- completed
- 152K
- cumulative oil, bbl
- 70.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 2018
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 15 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| WWW Ramsey Unit O-10-35789 | W W W (Ramsey) | OXY USA Inc. | 12 | 122K | 56.9K | Apr 1998 – Dec 2018 |
| Mathews O-10-29411 | W W W (Ramsey) | Saga Petroleum Corp. | 3 | 29.7K | 13.9K | Jan 1993 – Aug 1998 |
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.
- 1Blair, Jack N.Jan 1993 → Apr 1994
- 2Saga Petroleum Corp.May 1994 → Dec 1998
- 3Saga Pet. Ltd Liability Co of CoJan 1999 → Apr 2004
- 4Latigo Petroleum Texas, LPMay 2004 → Feb 2008
- 5OXY USA Inc.Mar 2008 → Oct 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 299975-99 | Other | Blair, Jack N. | Mar 20, 1986 | Mar 20, 1986 | — | 6,600 |
| 59293-99 | Drill | Gulf Oil Corp. | Sep 28, 1979 | Sep 28, 1979 | — | 6,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-29411 | — | — | — | — |
| — | — O-10-35789 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 12 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Ramsey | 4,865 | -4,853 |
| Bell Canyon | 4,873 | -4,861 |
| Cherry Canyon | 5,814 | -5,802 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,865 | 4,875 | Perforated |
| 5,590 | 5,634 | Perforated |
| 5,696 | 5,748 | Perforated |
| 5,850 | 5,862 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,169 | 11 | 375 S |
| 13.375 | 1,183 | 17.25 | 320 S |
| 8.625 | 4,704 | 11 | 300 S |
| 5.5 | 5,000 | 7.875 | 250 S |
| 5.5 | 6,224 | 7.875 | 500 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 | Jul 16, 1998 | Apr 16, 1986 | — |
| 00 | Apr 18, 1990 | Apr 16, 1986 | — |
| 00 | May 5, 1986 | Apr 16, 1986 | — |
| 00 | Apr 26, 1986 | Nov 28, 1984 | — |
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 42-475-31951 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-475-31951 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 1.59M
- bbl, all reported
- Jul 2008
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000058017 | W-14 Disposal | Plugged Feb 25, 2009 | 10,000 | 2,000 | 5,590–5,862 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/47531951, documented in the API reference.