TEXAS · WELLS · DE WITT COUNTY · COLMAN LEASE · API 42-123-33133 · DISTRICT 02
Colman #1H
De Witt County · De Witt (Eagle Ford Shale) field · Producing · Horizontal
Colman #1H (API 42-123-33133) is a horizontal well in De Witt County operated by Ensign Natural Resources II LLC, completed October 12, 2013 and listed as producing on the RRC schedule, shut in June 1, 2026.
The RRC has issued one drilling permit (amended once), issued April 16, 2013, permitted to 13,932 ft.
It was permitted by Marathon Oil EF LLC and has since transferred to Ensign Natural Resources II LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 13.4K barrels of oil and 1.04M mcf of gas since July 2013, last reporting volume in May 2026.
Operator of record
Ensign Natural Resources II LLC
Permitted by Marathon Oil EF LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 29, 2026
- Permits on file
- 13
- Phone
- (346) 809-4062
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ensign Natural Resources II LLC |
| Production reports | Marathon Oil EF LLCthrough Mar 2026 |
| Latest permit | Marathon Oil EF LLCApr 16, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,932
- total depth, ft
- 2
- permits on file
- Apr 16, 2013
- last permit issued
- Oct 12, 2013
- completed
- 13.4K
- cumulative oil, bbl
- 1.04M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · DEC 2013 THROUGH MAY 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 12, 2013
- Shut in
- Jun 1, 2026
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 |
|---|---|---|---|---|---|---|
| Colman G-2-270909 | De Witt (Eagle Ford Shale) | Ensign Natural Resources II LLC | 1 | 13.4K | 1.04M | Jul 2013 – May 2026 |
Gas, mcf lease total
Last 12 months 546 · prior 12 3,282(-83%)
Wells named Colman
Ensign Natural Resources II LLC's other wells filed under this lease name in De Witt County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCDec 2013 → May 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 760543-98 | Drill | Marathon Oil EF LLC | Jun 4, 2013 | Apr 16, 2013 | Jun 15, 2013 | 18,500 |
| 760543-99 | Drill | Marathon Oil EF LLC | Apr 11, 2013 | Apr 16, 2013 | Jun 15, 2013 | 16,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 12, 2013 | Colman G-2-270909 | De Witt (Eagle Ford Shale) | Ensign Natural Resources II LLC | Producing · shut in Jun 1, 2026 | 13,932 |
Formation tops
As filed on W-2/G-1. Subsea from 190 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 13,249 | -13,059 |
| Austin Chalk | 13,460 | -13,270 |
| Eagle Ford | 13,937 | -13,747 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 14,272 | 19,196 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,445 | 17.5 | 1,535 S |
| 9.625 | 11,436 | 12.25 | 1,925 S |
| 5.5 | 19,330 | 8.5 | 3,615 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Feb 25, 2014 | Dec 26, 2013 | Yes |
| 00 | Jan 6, 2014 | Oct 14, 2013 | Yes |
Well logs
2 logs loaded from the RRC's log index, the latest received Nov 16, 2016. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Anacacho, Austin Chalk, Eagle Ford | TIFF | 2,600 to 19,351 | Nov 16, 2016run Jul 10, 2013 | 1.51 |
| RESISTIVITYSpans Anacacho, Austin Chalk, Eagle Ford | TIFF | 2,580 to 19,351 | Sep 19, 2016run Jul 10, 2013 | 1.08 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-123-33133 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-33133 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/12333133, documented in the API reference.