TEXAS · WELLS · DIMMIT COUNTY · DULLNIG UNIT D DIM LEASE · API 42-127-34638 · DISTRICT 01
Dullnig Unit D Dim #1H
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Dullnig Unit D Dim #1H (API 42-127-34638) is a horizontal well in Dimmit County operated by Ineos USA Oil & Gas LLC, completed September 17, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 26, 2012, permitted to 6,314 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 Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 125K barrels of oil and 385K mcf of gas since September 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.Mar 26, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,314
- total depth, ft
- 1
- permits on file
- Mar 26, 2012
- last permit issued
- Sep 17, 2012
- completed
- 125K
- cumulative oil, bbl
- 385K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 17, 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 D Dim O-1-16370 | Briscoe Ranch (Eagleford) | Ineos USA Oil & Gas LLC | 1 | 125K | 385K | Sep 2012 – Apr 2026 |
Oil, barrels lease total
Last 12 months 877 · prior 12 3,004(-71%)
Gas, mcf lease total
Last 12 months 4,073 · prior 12 14,899(-73%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Oct 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 |
|---|---|---|---|---|---|---|
| 736059-99 | Drill | Chesapeake Operating, Inc. | Mar 13, 2012 | Mar 26, 2012 | Apr 12, 2012 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 17, 2012 | Dullnig Unit D Dim O-1-16370 | Briscoe Ranch (Eagleford) | Ineos USA Oil & Gas LLC | Producing | 6,314 |
Formation tops
As filed on W-2/G-1. Subsea from 774 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 4,967 | -4,193 |
| Austin Chalk | 5,279 | -4,505 |
| Eagle Ford | 5,968 | -5,194 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,528 | 10,877 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,500 | 12.25 | 470 S |
| 5.5 | 10,975 | 8.75 | 1,460 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 | Mar 14, 2013 | Nov 27, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 22, 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 | 1,500 to 10,975 | Mar 22, 2016run Apr 24, 2012 | 0.77 |
"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 42-127-34638 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-34638 → 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/12734638, documented in the API reference.