TEXAS · WELLS · KARNES COUNTY · MAYER B LEASE · API 42-255-33445 · DISTRICT 02
Mayer B #4H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Mayer B #4H (API 42-255-33445) is a horizontal well in Karnes County operated by Bpx Operating Company, completed January 17, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 31, 2013, permitted to 11,281 ft.
It was permitted by Bhp Billiton Pet(Txla OP) CO and has since transferred to Bpx Operating Company on the wellbore schedule.
Completion filings report 11 formation tops, including Queen City, Reklaw, Carrizo, Wilcox.
Its lease has reported 1.34M barrels of oil and 1.51M mcf of gas since August 2012, last reporting volume in April 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by BHP Billiton Pet(txla OP) Co; the EWA schedule now lists a different operator.
- Based in
- Denver, CO
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 24, 2026
- Permits on file
- 1,576
- Phone
- (720) 439-5104
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | BPX Operating Company |
| Production reports | BPX Operating Companythrough Apr 2026 |
| Latest permit | BHP Billiton Pet(txla OP) CoOct 31, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,281
- total depth, ft
- 1
- permits on file
- Oct 31, 2013
- last permit issued
- Jan 17, 2015
- completed
- 1.34M
- cumulative oil, bbl
- 1.51M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 17, 2015
- 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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayer B O-2-10236 | Eagleville (Eagle Ford-2) | BPX Operating Company | 5 | 1.34M | 1.51M | Aug 2012 – Apr 2026 |
Oil, barrels lease total
Last 12 months 25,283 · prior 12 26,896(-6%)
Gas, mcf lease total
Last 12 months 17,240 · prior 12 26,365(-35%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Petrohawk Operating CompanyAug 2012 → Jul 2013
- 2BHP Billiton Pet(txla OP) CoAug 2013 → Jul 2019
- 3BPX Operating CompanyAug 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 772377-99 | Drill | BHP Billiton Pet(txla OP) Co | Oct 23, 2013 | Oct 31, 2013 | Jan 29, 2014 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 17, 2015 | Mayer B O-2-10236 | Eagleville (Eagle Ford-2) | BPX Operating Company | Producing | 11,281 |
Formation tops
As filed on W-2/G-1. Subsea from 287 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 2,187 | -1,900 |
| Reklaw | 3,807 | -3,520 |
| Carrizo | 4,157 | -3,870 |
| WilcoxWILCOX - DISPOSAL | 4,157 | -3,870 |
| Anacacho | 10,425 | -10,138 |
| Austin ChalkAUSTIN CHALK - H2S | 10,498 | -10,211 |
| Austin Chalk | 10,523 | -10,236 |
| Eagle Ford | 10,869 | -10,582 |
| Eagle FordEAGLE FORD - H2S | 10,869 | -10,582 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
| YeguaYEGUA - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,128 | 17,630 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,796 | 12.25 | 1,271 S |
| 5.5 | 17,743 | 8.75 | 2,862 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 | Dec 17, 2015 | Jun 1, 2015 | Yes |
| 00 | Sep 15, 2014 | Jul 3, 2014 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Feb 22, 2017. 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 Anacacho, Austin Chalk, Eagle Ford | TIFF | 10,450 to 17,700 | Feb 22, 2017 | 1.45 |
"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 42-255-33445 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-33445 → 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/25533445, documented in the API reference.