WELL · 42-435-31984 · DISTRICT 7
Richardson 139 #2
Sutton County · Sawyer (Leonard) field · Vertical
Richardson 139 #2 (API 42-435-31984) is a plugged well in Sutton County, plugged June 22, 2017, last operated by Enervest Operating L.L.C..
The RRC has issued 2 drilling permits between 1977 and 1979, permitted to 8,472 ft.
It was permitted by Hng Oil Company and has since transferred to Enervest Operating L.L.C. on the wellbore schedule.
Completion filings report 4 formation tops, including Leonard, Canyon, Strawn, Ellenburger.
Operator of record
Permitted by HNG Oil Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 13, 2026
- Permits on file
- 1,249
- Phone
- (713) 659-3500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Enervest Operating L.L.C. |
| Production reports | Dominion Oklahoma Texas E&P, Incthrough May 2007 |
| Latest permit | HNG Oil CompanyAug 23, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,472
- total depth, ft
- 2
- permits on file
- Aug 23, 1979
- last permit issued
- Sep 18, 1979
- completed
- 0
- cumulative oil, bbl
- 101K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jun 2017
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 18, 1979
- Shut in
- —
- Plugged
- Jun 22, 2017
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 |
|---|---|---|---|---|---|---|
| Richardson 139 G-9-80468 | Sawyer (Canyon) | Enervest Operating, L.L.C. | 1 | 0 | 101K | Jan 1993 – Jun 2017 |
| Richardson 139 G-9-84527 | Sawyer (Leonard) | Enervest Operating, L.L.C. | 1 | 0 | 0 | Jan 1993 – Jun 2017 |
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.
- 1American Exploration CompanyJan 1993 → Jul 1995
- 2Dreyfus, Louis Natural Gas CorpAug 1995 → Nov 2001
- 3Dominion Oklahoma Texas E&P, IncDec 2001 → May 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 56374-99 | Other | HNG Oil Company | Aug 23, 1979 | Aug 23, 1979 | — | 8,472 |
| 8824-99 | Drill | HNG Oil Company | Sep 29, 1977 | Sep 29, 1977 | Sep 12, 1978 | 8,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-80468 | — | — | — | — |
| — | — G-9-84527 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,290 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LeonardTOP OF LEONARD | 1,714 | 576 |
| CanyonTOP CANYON | 6,011 | -3,721 |
| CanyonBASE CANYON | 7,450 | -5,160 |
| StrawnTOP STRAWN | 7,722 | -5,432 |
| EllenburgerTOP OF ELLENBURGER | 8,347 | -6,057 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,714 | 1,808 | Perforated |
| 6,335 | 6,916 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 560 | 13.75 | 215 S |
| 7 | 2,302 | 8.75 | 750 S |
| 1.5 | 6,923 | — | — |
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 29, 2017 | Mar 21, 2017 | — |
| 00 | Jan 12, 1984 | Oct 16, 1979 | — |
| 00 | Jan 12, 1984 | Jan 30, 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 42-435-31984 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-31984 → 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/43531984, documented in the API reference.