TEXAS · WELLS · STONEWALL COUNTY · KOLB UNIT LEASE · API 42-433-33016 · DISTRICT 6E
Kolb Unit #1
Stonewall County · Mullen Ranch (Tannehill) field · Vertical
Kolb Unit #1 (API 42-433-33016) is a plugged well in Stonewall County, plugged September 16, 2020, last operated by Stovall Operating CO..
The RRC has issued one drilling permit, issued January 12, 1996, permitted to 3,400 ft.
Completion filings report 2 formation tops, including Noodle Creek, Tannehill.
Its lease has reported 44.9K barrels of oil since February 1996, last reporting in May 2021.
Operator of record
- Based in
- Graham, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 25, 2025
- Permits on file
- 259
- Phone
- (940) 549-2616
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Stovall Operating Co. |
| Production reports | Stovall Operating Co.through Aug 2018 |
| Latest permit | Stovall Operating Co.Jan 12, 1996 |
- 3,400
- total depth, ft
- 1
- permits on file
- Jan 12, 1996
- last permit issued
- Feb 12, 1996
- completed
- 44.9K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 1996 THROUGH May 2021
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 12, 1996
- Shut in
- —
- Plugged
- Sep 16, 2020
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Kolb Unit O-8-27781 | Mullen Ranch (Tannehill) | Stovall Operating Co. | 1 | 44.9K | 0 | Feb 1996 – May 2021 |
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.
- 1Stovall Operating Co.Feb 1996 → Aug 2018
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 443578-99 | Drill | Stovall Operating Co. | Jan 12, 1996 | Jan 12, 1996 | Jan 22, 1996 | 3,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 12, 1996 | Kolb Unit O-8-27781 | Mullen Ranch (Tannehill) | Stovall Operating Co. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,802 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Noodle Creek | 3,150 | -1,348 |
| TannehillTANNEHILL SAND | 3,192 | -1,390 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,196 | 3,199 | Perforated |
| 3,200 | 3,202 | Perforated |
| 3,203 | 3,208 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 169 | 12.25 | 150 S |
| 4.5 | 3,290 | 7.875 | 185 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 18, 1996 | Feb 28, 1996 | Yes |
| 00 | Mar 11, 1996 | — | — |
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 42-433-33016 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-433-33016 → 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/43333016, documented in the API reference.