TEXAS · WELLS · UPTON COUNTY · BOSS EAST I 40-45 LEASE · API 42-461-42812 · DISTRICT 6E
Boss East I 40-45 #4409H
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
Boss East I 40-45 #4409H (API 42-461-42812) is a horizontal well in Upton County operated by Diamondback E&P LLC, completed October 31, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 3, 2024, permitted to 9,883 ft.
It was permitted by De IV Operating, LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 590K barrels of oil and 1.16M mcf of gas since August 2024, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by De IV Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,243
- 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 | De IV Operating, LLCMay 3, 2024 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,883
- total depth, ft
- 2
- permits on file
- May 3, 2024
- last permit issued
- Oct 31, 2024
- completed
- 590K
- cumulative oil, bbl
- 1.16M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2024 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 31, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.535057, -102.065075
Permit surface location from the RRC GIS record, in Upton County.
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; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Boss East I 40-45 O-9-22742 | Spraberry (Trend Area) | Diamondback E&P LLC | 3 | 590K | 1.16M | Aug 2024 – Jul 2026 |
Oil, barrels lease total
Last 12 months 322,734 · prior 12 266,967(+21%)
Gas, mcf lease total
Last 12 months 841,128 · prior 12 318,874(+164%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1De IV Operating, LLCNov 2024 → Apr 2025
- 2Diamondback E&P LLCMay 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 899395-98 | Drill | De IV Operating, LLC | May 9, 2024 | May 3, 2024 | — | 10,605 |
| 899395-99 | Drill | De IV Operating, LLC | May 1, 2024 | May 3, 2024 | May 17, 2024 | 10,605 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 31, 2024 | Boss East I 40-45 O-9-22742 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 9,883 |
Formation tops
As filed on W-2/G-1. Subsea from 2,813 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,682 | 131 |
| Grayburg | 4,579 | -1,766 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,721 | -1,908 |
| Spraberry | 7,705 | -4,892 |
| Wolfcamp | 9,185 | -6,372 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,291 | 20,742 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 498 | 17.5 | 365 S |
| 9.625 | 9,275 | 12.25 | 1,970 S |
| 5.5 | 20,840 | 8.5 | 2,444 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 | Jan 27, 2025 | Jan 13, 2025 | — |
| 00 | Oct 8, 2024 | Sep 18, 2024 | 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 42-461-42812 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-42812 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbors, subsea-aligned so they line up regardless of surface terrain.
Boss East K 40-4542-461-42809
0.0 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,673 | 140 |
| Grayburg | 4,574 | -1,761 |
| San Andres | 4,715 | -1,902 |
| Spraberry | 7,701 | -4,888 |
| Wolfcamp | 9,187 | -6,374 |
| Ellenburger | — | |
| Devonian | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Boss East I 40-4542-461-42813
0.0 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,668 | 145 |
| Grayburg | 4,575 | -1,762 |
| San Andres | 4,717 | -1,904 |
| Spraberry | 7,700 | -4,887 |
| Wolfcamp | — | |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Boss East K 40-4542-461-42810
0.0 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,671 | 142 |
| Grayburg | 4,579 | -1,766 |
| San Andres | 4,719 | -1,906 |
| Spraberry | 7,702 | -4,889 |
| Fusselman | — | |
| Wolfcamp | — | |
| Strawn | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Boss East I 40-4542-461-42814
0.0 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,668 | 145 |
| Grayburg | 4,572 | -1,759 |
| San Andres | 4,715 | -1,902 |
| Spraberry | 7,699 | -4,886 |
| Fusselman | — | |
| Ellenburger | — | |
| Devonian | — | |
| Strawn | — |
9 TOPS · FIRST 8
Boss East K 40-4542-461-42808
0.2 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,672 | -127 |
| Queen | 3,720 | -1,175 |
| Grayburg | 4,575 | -2,030 |
| San Andres | 4,721 | -2,176 |
| Clear Fork | 6,832 | -4,287 |
| Spraberry | 7,697 | -5,152 |
| Wolfcamp | 9,176 | -6,631 |
| Strawn | — |
11 TOPS · FIRST 8
Boss East L 40-4542-461-42806
0.2 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,667 | -122 |
| Queen | 3,729 | -1,184 |
| Grayburg | 4,573 | -2,028 |
| San Andres | 4,721 | -2,176 |
| Clear Fork | 6,831 | -4,286 |
| Spraberry | 7,697 | -5,152 |
| Strawn | — | |
| Wolfcamp | — |
11 TOPS · FIRST 8
Boss East L 40-4542-461-42807
0.2 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,661 | -116 |
| Queen | 3,720 | -1,175 |
| Grayburg | 4,571 | -2,026 |
| San Andres | 4,720 | -2,175 |
| Clear Fork | 6,829 | -4,284 |
| Spraberry | 7,695 | -5,150 |
| Devonian | — | |
| Strawn | — |
11 TOPS · FIRST 8
Boss East L 40-4542-461-42805
0.2 KM · De IV Operating, LLC · Section with this well →
| Yates | 2,666 | 879 |
| Queen | 3,721 | -176 |
| Grayburg | 4,572 | -1,027 |
| San Andres | 4,726 | -1,181 |
| Clear Fork | 6,832 | -3,287 |
| Spraberry | 7,696 | -4,151 |
| Wolfcamp | 9,179 | -5,634 |
| Strawn | — |
11 TOPS · FIRST 8
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/46142812, documented in the API reference.