WELL · 42-429-31948 · DISTRICT 7
Richardson R.N. #4
Stephens County · Rogers Ranch (Congl. 3900) field · Vertical
Richardson R.N. #4 (API 42-429-31948) is a well in Stephens County operated by Delta Oil & Gas Ltd., completed April 25, 1979.
The RRC has issued 2 drilling permits between 1978 and 2015, permitted to 4,500 ft.
Completion filings report 2 formation tops, including Caddo, Marble Falls.
Its 2 leases have reported 3.57K barrels of oil and 363K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Breckenridge, TX · P-5 Y, filed Dec 4, 2025 · 348 permits on file · (254) 559-4614
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Delta Oil & Gas Ltd. |
| Production reports | Delta Oil & Gas Ltd.through Apr 2026 |
| Latest permit | Delta Oil & Gas Ltd.Sep 2, 2015 |
- 4,500
- total depth, ft
- 2
- permits on file
- Sep 2, 2015
- last permit issued
- Apr 25, 1979
- completed
- 3.57K
- cumulative oil, bbl
- 363K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 25, 1979
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| R. N. Richardson O-8-31868 | Caddo (Conglomerate) | Delta Oil & Gas Ltd. | 1 | 3.57K | 16.8K | Aug 2015 – Jul 2026 |
| Richardson, R.N. G-8-82679 | Rogers Ranch (Congl. 3900) | Delta Oil & Gas Ltd. | 1 | 0 | 346K | Jan 1993 – Aug 2015 |
Gas, mcf lease total
Last 12 months 1,464 · prior 12 1,323(+11%)
Oil, barrels lease total
Last 12 months 148 · prior 12 73(+103%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Delta Oil & Gas CompanyJan 1993 → Apr 2003
- 2Delta Oil & Gas Ltd.May 2003 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 809394-99 | Recompletion | Delta Oil & Gas Ltd. | Aug 12, 2015 | Sep 2, 2015 | Aug 10, 2015 | 4,051 |
| 33074-99 | Drill | Delta Oil & Gas Company | Sep 20, 1978 | Sep 20, 1978 | — | 4,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-82679 | — | — | — | — |
| — | — O-8-31868 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,146 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Caddo | 3,134 | -1,988 |
| Marble Falls | 3,796 | -2,650 |
| Caddo | 3,978 | -2,832 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,802 | 3,808 | Perforated |
| 3,924 | 3,927 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 129 | 11 | 125 S |
| 2.375 | 3,920 | — | — |
| 4.5 | 4,051 | 7.875 | 275 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 | Sep 25, 2015 | Sep 15, 2015 | Yes |
| 00 | Jan 12, 1984 | Jun 10, 1979 | — |
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 42-429-31948 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-429-31948 → 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/42931948, documented in the API reference.