WELL · 42-135-40214 · DISTRICT 8
Kayleigh #12
Ector County · Sallie Ann (Spraberry-Wolfcamp) field · Shut IN · Vertical
Kayleigh #12 (API 42-135-40214) is a well in Ector County operated by Diamondback E&P LLC, completed February 27, 2014 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued March 30, 2010, permitted to 10,838 ft.
It was permitted by Callon Petroleum Operating CO and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.
Its lease has reported 309K barrels of oil and 563K mcf of gas since November 2008, last reporting in July 2026. The lease carries 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Callon Petroleum Operating Co; 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
- 5,237
- 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 | Callon Petroleum Operating CoMar 30, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,838
- total depth, ft
- 2
- permits on file
- Mar 30, 2010
- last permit issued
- Feb 27, 2014
- completed
- 309K
- cumulative oil, bbl
- 563K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 27, 2014
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Kayleigh O-10-39109 | Sallie Ann (Spraberry-Wolfcamp) | Diamondback E&P LLC | 11 | 309K | 563K | Nov 2008 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,539 · prior 12 5,210(-32%)
Gas, mcf lease total
Last 12 months 5,586 · prior 12 9,085(-39%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EXL Petroleum, LPNov 2008 → Sep 2009
- 2Callon Petroleum Operating CoOct 2009 → Dec 2017
- 3FDL Operating, LLCJan 2018 → Jun 2019
- 4Firebird Energy LLCJul 2019 → Nov 2022
- 5Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 692226-98 | Drill | Callon Petroleum Operating Co | Jun 5, 2012 | Mar 30, 2010 | Mar 10, 2011 | 10,838 |
| 692226-99 | Drill | Callon Petroleum Operating Co | Mar 3, 2010 | Mar 30, 2010 | Mar 10, 2011 | 10,350 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-39109 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,914 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,386 | 10,614 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,503 | 12.25 | 785 S |
| 5.5 | 10,823 | 7.875 | 1,405 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 15, 2015 | Jul 21, 2014 | — |
| 00 | Dec 20, 2012 | Aug 25, 2011 | Yes |
| 00 | Nov 12, 2012 | Aug 4, 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 42-135-40214 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-40214 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/13540214, documented in the API reference.