TEXAS · WELLS · GLASSCOCK COUNTY · KOLB LEASE · API 42-173-34353 · DISTRICT 7B
Kolb #1
Glasscock County · Spraberry (Trend Area) field · Producing · Vertical
Kolb #1 (API 42-173-34353) is a well in Glasscock County operated by Diamondback E&P LLC, completed November 6, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 13, 2011, permitted to 10,230 ft.
It was permitted by Piedra Operating, LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its lease has reported 24.7K barrels of oil and 49K mcf of gas since November 2011, last reporting in July 2026.
Operator of record
Permitted by Piedra Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,243
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Piedra Operating, LLCJul 13, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,230
- total depth, ft
- 2
- permits on file
- Jul 13, 2011
- last permit issued
- Nov 6, 2011
- completed
- 24.7K
- cumulative oil, bbl
- 49K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 6, 2011
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 O-10-41910 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 24.7K | 49K | Nov 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 672 · prior 12 752(-11%)
Gas, mcf lease total
Last 12 months 2,434 · prior 12 801(+204%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Piedra Operating, LLCNov 2011 → Mar 2014
- 2Athlon Holdings LPApr 2014 → Jan 2015
- 3Encana Oil & Gas(usa) Inc.Feb 2015 → Aug 2019
- 4Fed Operating LLCSep 2019 → Oct 2022
- 5De IV Operating, LLCNov 2022 → Apr 2025
- 6Diamondback E&P LLCMay 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 720057-98 | Drill | Piedra Operating, LLC | Aug 4, 2011 | Jul 13, 2011 | Sep 17, 2011 | 11,500 |
| 720057-99 | Drill | Piedra Operating, LLC | Jul 12, 2011 | Jul 13, 2011 | — | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 6, 2011 | Kolb O-10-41910 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 10,230 |
Formation tops
As filed on W-2/G-1. Subsea from 2,558 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,358 | 9,738 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 410 | 17.5 | 350 S |
| 8.625 | 5,021 | 11 | 1,300 S |
| 5.5 | 10,230 | 7.875 | 1,300 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 | Nov 1, 2012 | Dec 9, 2011 | Yes |
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 42-173-34353 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-34353 → 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/17334353, documented in the API reference.