WELL · 42-105-40258 · DISTRICT 7
Mayfield #13B
Crockett County · Ozona (Canyon Sand) field · Producing · Vertical
Mayfield #13B (API 42-105-40258) is a well in Crockett County operated by Dawson Energy LLC, completed July 12, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 20, 2007, permitted to 6,700 ft.
It was permitted by Fiml Natural Resources, LLC and has since transferred to Dawson Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Base Cretaceous (marker), Clear Fork, Wolfcamp.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Fiml Natural Resources, LLC; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Dec 19, 2025 · (817) 456-2491
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Dawson Energy LLC |
| Production reports | Dawson Energy, LLCthrough Apr 2026 |
| Latest permit | Fiml Natural Resources, LLCMar 20, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,700
- total depth, ft
- 1
- permits on file
- Mar 20, 2007
- last permit issued
- Jul 12, 2007
- completed
- 0
- cumulative oil, bbl
- 62.2K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 12, 2007
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayfield G-9-232516 | Ozona (Canyon Sand) | Dawson Energy, LLC | 1 | 0 | 62.2K | Jul 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 1,609 · prior 12 1,755(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Fiml Natural Resources, LLCJul 2007 → Aug 2014
- 2Discovery Natural Resources LLCSep 2014 → Sep 2014
- 3Llano Production CompanyOct 2014 → Dec 2014
- 4Wolfcamp Energy, LLCJan 2015 → Nov 2025
- 5Dawson Energy, LLCDec 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 635128-99 | Drill | Fiml Natural Resources, LLC | Mar 13, 2007 | Mar 20, 2007 | May 24, 2007 | 6,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-232516 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,187 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE OF CRETACEOUS | 904 | 1,283 |
| Clear ForkCLEARFORK | 1,812 | 375 |
| WolfcampWOLFCAMP MARKER | 4,619 | -2,432 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,897 | 6,201 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 947 | 11 | 390 S |
| 4.5 | 6,346 | 7.875 | 500 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 | Feb 6, 2008 | Sep 4, 2007 | Yes |
| 00 | Jan 28, 2008 | — | — |
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 42-105-40258 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-40258 → 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/10540258, documented in the API reference.