TEXAS · WELLS · HOWARD COUNTY · BIG EL 45-04 LEASE · API 42-227-38869 · DISTRICT 7B
Big el 45-04 #1AH
Howard County · Spraberry (Trend Area) field · Producing · Horizontal
Big El 45-04 #1AH (API 42-227-38869) is a horizontal well in Howard County operated by Crescent Energy Operating LLC, completed January 26, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued October 19, 2016, permitted to 7,675 ft.
It was permitted by Sabalo Operating, LLC and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Glorieta, San Andres.
Its lease has reported 696K barrels of oil and 1.24M mcf of gas since May 2017, last reporting volume in April 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sabalo Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 28, 2025
- Permits on file
- 54
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Sabalo Operating, LLCOct 19, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,675
- total depth, ft
- 3
- permits on file
- Oct 19, 2016
- last permit issued
- Jan 26, 2021
- completed
- 696K
- cumulative oil, bbl
- 1.24M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2017 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 26, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Big el 45-04 O-10-49234 | Spraberry (Trend Area) | Crescent Energy Operating, LLC | 2 | 696K | 1.24M | May 2017 – Apr 2026 |
Oil, barrels lease total
Last 12 months 29,802 · prior 12 42,804(-30%)
Gas, mcf lease total
Last 12 months 194,428 · prior 12 196,517(-1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sabalo Operating, LLCAug 2017 → Jun 2021
- 2Laredo Petroleum, Inc.Jul 2021 → Nov 2022
- 3Vital Energy, Inc.Feb 2023 → Dec 2025
- 4Crescent Energy Operating, LLCJan 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 819050-97 | Drill | Sabalo Operating, LLC | Apr 28, 2017 | Oct 19, 2016 | — | 9,000 |
| 819050-98 | Drill | Sabalo Operating, LLC | Apr 10, 2017 | Oct 19, 2016 | Apr 15, 2017 | 9,000 |
| 819050-99 | Drill | Sabalo Operating, LLC | Oct 3, 2016 | Oct 19, 2016 | — | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 26, 2021 | Big el 45-04 O-10-49234 | Spraberry (Trend Area) | Crescent Energy Operating LLC | Producing | 7,675 |
Formation tops
As filed on W-2/G-1. Subsea from 2,724 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,993 | 731 |
| Seven Rivers | 2,099 | 625 |
| Glorieta | 2,980 | -256 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,231 | -507 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 4,205 | -1,481 |
| Spraberry | 6,172 | -3,448 |
| Leonard | 7,064 | -4,340 |
| Dean | 7,397 | -4,673 |
| Wolfcamp | 7,479 | -4,755 |
| Coleman Junction | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,008 | 17,505 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 468 | 17.5 | 470 S |
| 9.625 | 7,463 | 12.25 | 1,000 S |
| 5.5 | 17,597 | 8.5 | 2,680 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 | Jun 16, 2023 | May 17, 2023 | — |
| 00 | May 18, 2021 | Apr 29, 2021 | — |
| 00 | Feb 22, 2018 | Dec 6, 2017 | Yes |
| 00 | Jan 25, 2018 | Oct 6, 2017 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Jun 2, 2020. Gamma ray. 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 |
|---|---|---|---|---|
| Gamma RaySpans Yates, Seven Rivers, Glorieta, San Andres, Clear Fork, Spraberry, Leonard, Dean, Wolfcamp | LAS + TIFF | 467 to 17,597 | Jun 2, 2020 | 2.76 + 11.2 |
"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 42-227-38869 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-38869 → 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/22738869, documented in the API reference.