WELL · 42-429-34854 · DISTRICT 7
Cobb S. C. #10
Stephens County · Stephens County Regular field · Producing · Vertical
Cobb S. C. #10 (API 42-429-34854) is a well in Stephens County operated by Echols Oil Company L.L.C., completed April 2, 1987 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 23, 1987, permitted to 3,500 ft.
It was permitted by Rio Operating Company and has since transferred to Echols Oil Company L.L.C. on the wellbore schedule.
Completion filings report one formation top, including Caddo.
Its lease has reported 63K barrels of oil and 219K mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Rio Operating Company; the EWA schedule now lists a different operator.
Caddo, TX · P-5 Y, filed Nov 4, 2025 · (254) 559-3935
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Echols Oil Company L.L.C. |
| Production reports | Echols Oil Company, L.L.C.through Apr 2026 |
| Latest permit | Rio Operating CompanyMar 23, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,500
- total depth, ft
- 1
- permits on file
- Mar 23, 1987
- last permit issued
- Apr 2, 1987
- completed
- 63K
- cumulative oil, bbl
- 219K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 2, 1987
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cobb, S. C. O-8-3963 | Stephens County Regular | Echols Oil Company, L.L.C. | 5 | 63K | 219K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 696 · prior 12 1,119(-38%)
Oil, barrels lease total
Last 12 months 52 · prior 12 38(+37%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Echols Oil CompanyJan 1993 → Jan 2012
- 2Echols Oil Company, L.L.C.Feb 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 328133-99 | Drill | Rio Operating Company | Mar 23, 1987 | Mar 23, 1987 | — | 3,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-3963 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,297 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Caddo | 3,236 | -1,939 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,226 | 3,294 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 156 | 12.25 | 95 S |
| 4.5 | 3,400 | 7.875 | 130 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 | Jun 9, 1987 | May 8, 1987 | Yes |
| 00 | May 15, 1987 | — | — |
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 42-429-34854 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-429-34854 → 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/42934854, documented in the API reference.