TEXAS · WELLS · ANDREWS COUNTY · UL CARNIOLAN 7-49 J LEASE · API 42-003-48406 · DISTRICT 7B
UL Carniolan 7-49 J #4MS
Andrews County · Spraberry (Trend Area) field · Producing · Horizontal
UL Carniolan 7-49 J #4MS (API 42-003-48406) is a horizontal well in Andrews County operated by Diamondback E&P LLC, completed January 24, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 2, 2021, permitted to 9,015 ft.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Queen, Grayburg.
Its lease has reported 313K barrels of oil and 400K mcf of gas since November 2021, last reporting volume in April 2026.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,254
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCJul 2, 2021 |
- 9,015
- total depth, ft
- 1
- permits on file
- Jul 2, 2021
- last permit issued
- Jan 24, 2022
- completed
- 313K
- cumulative oil, bbl
- 400K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JAN 2022 THROUGH APR 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 24, 2022
- 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.
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 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 |
|---|---|---|---|---|---|---|
| UL Carniolan 7-49 J O-10-56859 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 313K | 400K | Nov 2021 – Apr 2026 |
Oil, barrels lease total
Last 12 months 35,835 · prior 12 38,850(-8%)
Gas, mcf lease total
Last 12 months 60,634 · prior 12 49,565(+22%)
Wells named UL Carniolan 7-49 J
Diamondback E&P LLC's other wells filed under this lease name in Andrews 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.
- 1Diamondback E&P LLCJan 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 870845-99 | Drill | Diamondback E&P LLC | Jun 28, 2021 | Jul 2, 2021 | Oct 29, 2021 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 24, 2022 | UL Carniolan 7-49 J O-10-56859 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 9,015 |
Formation tops
As filed on W-2/G-1. Subsea from 2,989 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,135 | -146 |
| Seven Rivers | 3,384 | -395 |
| Queen | 3,850 | -861 |
| Grayburg | 4,273 | -1,284 |
| San AndresSAN ANDRES - CO2 FLOOD, HIGH FLO | 4,719 | -1,730 |
| Glorieta | 5,811 | -2,822 |
| Clear ForkCLEARFORK | 6,861 | -3,872 |
| Permian (undifferentiated)PERMIAN DETRITAL | 8,447 | -5,458 |
| Holt | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,364 | 19,668 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,924 | 14.75 | 980 S |
| 8.625 | 7,076 | 10.625 | 965 S |
| 5.5 | 19,756 | 7.875 | 1,775 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 | Aug 2, 2022 | May 10, 2022 | Yes |
| 00 | Apr 20, 2022 | Mar 21, 2022 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Nov 14, 2024. Cement bond. 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 |
|---|---|---|---|---|
| Cement BondSpans Yates, Seven Rivers, Queen, Grayburg, San Andres, Glorieta, Clear Fork, Permian (undifferentiated) | TIFF | 0 to 9,099 | Nov 14, 2024 | 46.7 |
"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 42-003-48406 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-48406 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/00348406, documented in the API reference.