TEXAS · WELLS · DIMMIT COUNTY · DULLNIG UNIT B DIM LEASE · API 42-127-34892 · DISTRICT 01
Dullnig Unit B Dim #4H
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Dullnig Unit B Dim #4H (API 42-127-34892) is a horizontal well in Dimmit County operated by Ineos USA Oil & Gas LLC, completed November 19, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 15, 2012, permitted to 6,421 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Ineos USA Oil & Gas LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Anacahco, Austin Chalk, Eagle Ford.
Its lease has reported 241K barrels of oil and 605K mcf of gas since November 2012, last reporting volume in April 2026.
Operator of record
Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.
- Based in
- Denver, CO
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 26, 2026
- Permits on file
- 98
- Phone
- (720) 764-3473
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ineos USA Oil & Gas LLC |
| Production reports | Ineos USA Oil & Gas LLCthrough Apr 2026 |
| Latest permit | Chesapeake Operating, Inc.Jun 15, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,421
- total depth, ft
- 1
- permits on file
- Jun 15, 2012
- last permit issued
- Nov 19, 2012
- completed
- 241K
- cumulative oil, bbl
- 605K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 19, 2012
- 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 |
|---|---|---|---|---|---|---|
| Dullnig Unit B Dim O-1-16458 | Briscoe Ranch (Eagleford) | Ineos USA Oil & Gas LLC | 1 | 241K | 605K | Nov 2012 – Apr 2026 |
Oil, barrels lease total
Last 12 months 5,609 · prior 12 5,158(+9%)
Gas, mcf lease total
Last 12 months 11,678 · prior 12 5,799(+101%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Dec 2012 → Oct 2014
- 2Chesapeake Operating, L.L.C.Nov 2014 → Mar 2023
- 3Ineos USA Oil & Gas LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 742326-99 | Drill | Chesapeake Operating, Inc. | Jun 7, 2012 | Jun 15, 2012 | Jul 20, 2012 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 19, 2012 | Dullnig Unit B Dim O-1-16458 | Briscoe Ranch (Eagleford) | Ineos USA Oil & Gas LLC | Producing | 6,421 |
Formation tops
As filed on W-2/G-1. Subsea from 789 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacahco | 5,154 | -4,365 |
| Austin Chalk | 5,488 | -4,699 |
| Eagle FordEAGLEFORD | 6,169 | -5,380 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,783 | 14,514 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,637 | 12.25 | 495 S |
| 5.5 | 14,624 | 8.75 | 3,120 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 | Apr 9, 2013 | Feb 6, 2013 | 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 42-127-34892 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-34892 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/12734892, documented in the API reference.