WELL · 42-275-31509 · DISTRICT 9
Yost C. G. #4
Knox County · Voss (Tannehill) field · Vertical
Yost C. G. #4 (API 42-275-31509) is a plugged well in Knox County, plugged April 10, 1995, last operated by Wells Oilfield Services Inc..
The RRC has issued one drilling permit, issued February 7, 1984, permitted to 2,099 ft.
It was permitted by Reynolds, Richard and has since transferred to Wells Oilfield Services Inc. on the wellbore schedule.
Its lease has reported 62 barrels of oil and 8 mcf of gas since January 1993, last reporting in May 1995. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Reynolds, Richard; the EWA schedule now lists a different operator.
Graham, TX · P-5 Y, filed Feb 4, 2026 · 53 permits on file · (940) 521-1266
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Wells Oilfield Services Inc. |
| Production reports | Reynolds, Richardthrough Aug 1994 |
| Latest permit | Reynolds, RichardFeb 7, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,099
- total depth, ft
- 1
- permits on file
- Feb 7, 1984
- last permit issued
- Feb 16, 1984
- completed
- 62
- cumulative oil, bbl
- 8
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 1995
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 16, 1984
- Shut in
- —
- Plugged
- Apr 10, 1995
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; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Yost, C. G. O-13-8513 | Voss (Tannehill) | Wells Oilfield Services, Inc. | 4 | 62 | 8 | Jan 1993 – May 1995 |
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.
- 1Reynolds, RichardJan 1993 → Aug 1994
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 228632-99 | Drill | Reynolds, Richard | Feb 6, 1984 | Feb 7, 1984 | — | 2,099 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-8513 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,994 | 1,998 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 120 | 12.25 | 100 S |
| 4.5 | 2,022 | 7.875 | 125 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 | Apr 10, 1984 | Mar 22, 1984 | — |
| 00 | Mar 30, 1984 | Mar 22, 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 42-275-31509 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-275-31509 → 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/27531509, documented in the API reference.