WELL · 42-251-30110 · DISTRICT 5
Colmer #A 1
Johnson County · Cleburne (Barnett Shale) field · Vertical
Colmer #A 1 (API 42-251-30110) is a plugged well in Johnson County, plugged July 1, 2010, last operated by Chesapeake Operating Inc..
The RRC has issued one drilling permit (amended once), issued August 10, 2001, permitted to 7,400 ft.
It was permitted by Raydon Exploration, Inc. and has since transferred to Chesapeake Operating Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Marble Falls, Barnett, Ellenburger.
Operator of record
Permitted by Raydon Exploration, Inc.; the EWA schedule now lists a different operator.
Oklahoma City, OK · P-5 Y, filed Jul 4, 2026 · 13,061 permits on file · (405) 935-7500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chesapeake Operating Inc. |
| Production reports | Chesapeake Operating, Inc.through Feb 2009 |
| Latest permit | Raydon Exploration, Inc.Aug 10, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,400
- total depth, ft
- 2
- permits on file
- Aug 10, 2001
- last permit issued
- Dec 31, 2001
- completed
- 0
- cumulative oil, bbl
- 22.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2001 THROUGH Jun 2010
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 31, 2001
- Shut in
- —
- Plugged
- Jul 1, 2010
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 |
|---|---|---|---|---|---|---|
| Colmer G-5-192485 | Cleburne (Barnett Shale) | Chesapeake Operating, Inc. | 1 | 0 | 22.9K | Dec 2001 – Jun 2010 |
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.
- 1Hallwood Petroleum, LLCSep 2004 → May 2005
- 2Chesapeake Operating, Inc.Jun 2005 → Feb 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 512464-98 | Drill | Raydon Exploration, Inc. | Jan 13, 2003 | Aug 10, 2001 | — | 7,400 |
| 512464-99 | Drill | Raydon Exploration, Inc. | Aug 10, 2001 | Aug 10, 2001 | Aug 20, 2001 | 7,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-5-192485 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 831 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marble FallsMARBLE FALLS LS | 6,607 | -5,776 |
| BarnettBARNETT SHALE | 6,742 | -5,911 |
| Ellenburger | 6,947 | -6,116 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,803 | 6,886 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,185 | 12.25 | 585 S |
| 5.5 | 7,069 | 7.875 | 125 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 24, 2003 | Feb 11, 2002 | Yes |
| 00 | Jan 31, 2003 | — | — |
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 42-251-30110 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-251-30110 → 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/25130110, documented in the API reference.