WELL · 42-215-31418 · DISTRICT 4
Johnson Mary #4
Hidalgo County · Monte Christo (VX-Eckart-EE CNS) field · Producing · Vertical
Johnson Mary #4 (API 42-215-31418) is a well in Hidalgo County operated by Cal-Tex Exploratn & Prod CO LLC, completed May 2, 2018 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1983 and 2018, permitted to 15,500 ft.
It was permitted by Galilee Oil Investments LLC and has since transferred to Cal-Tex Exploratn & Prod CO LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Frio, Vicksburg.
No lease production has been reported under this well’s leases.
Operator of record
Cal-Tex Exploratn & Prod Co LLC
Permitted by Galilee Oil Investments LLC; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Jun 4, 2026 · (713) 816-2810
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cal-Tex Exploratn & Prod Co LLC |
| Production reports | Cal-Tex Exploratn & Prod Co LLCthrough May 2025 |
| Latest permit | Galilee Oil Investments LLCApr 24, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,500
- total depth, ft
- 2
- permits on file
- Apr 24, 2018
- last permit issued
- May 2, 2018
- completed
- 0
- cumulative oil, bbl
- 356K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 2, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
Surface location
26.437908, -98.323787
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Hidalgo County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases 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 |
|---|---|---|---|---|---|---|
| Johnson, Mary G-4-110750 | Monte Christo (57-A) | Cal-Tex Exploratn & Prod Co LLC | 1 | 0 | 211K | Jan 1993 – Jul 2026 |
| Johnson, Mary G-4-284563 | Monte Christo (VX-Eckart-EE CNS) | Cal-Tex Exploratn & Prod Co LLC | 1 | 0 | 146K | May 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 116 · prior 12 3,336(-97%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Williams, Clayton W., Jr., Inc.Jan 1993 → Apr 1993
- 2Williams, Clayton Energy, L.L.CMay 1993 → May 1993
- 3Williams, Clayton Energy, Inc.Jun 1993 → Mar 2015
- 4Timberwolf E&P LLCNov 2015 → Dec 2015
- 5Huisache E & P Company, LLCJan 2016 → Dec 2016
- 6Galilee Oil Investments LLCJan 2017 → Aug 2023
- 7Cal-Tex Exploratn & Prod Co LLCSep 2023 → May 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 839078-99 | Recompletion | Galilee Oil Investments LLC | Apr 19, 2018 | Apr 24, 2018 | Apr 24, 2018 | 14,650 |
| 222865-99 | Drill | Williams, Clayton W., Jr. | Mar 27, 1984 | Dec 7, 1983 | Feb 2, 1984 | 15,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-110750 | — | — | — | — |
| — | — G-4-284563 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 218 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,734 | 8,815 | Perforated |
| 9,710 | 9,720 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,755 | 17.5 | 1,200 S |
| 9.625 | 8,960 | 12.25 | 4,900 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 | Aug 30, 2018 | Jul 30, 2018 | — |
| 00 | Jul 11, 1984 | Jun 28, 1984 | — |
| 00 | Jun 18, 1984 | Jun 28, 1984 | — |
| 00 | Jun 7, 1984 | Jun 28, 1984 | — |
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 42-215-31418 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-215-31418 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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 neighbours, subsea-aligned so they line up regardless of surface terrain.
Johnson, Mary42-215-31255
0.3 KM · Williams, Clayton W., Jr. · Section with this well →
| Frio | 6,438 | -6,224 |
| Frio | 7,405 | -7,191 |
| Frio | 7,593 | -7,379 |
| Frio | 8,073 | -7,859 |
| Frio | 8,746 | -8,532 |
| Vicksburg | 9,597 | -9,383 |
Johnson, F.I.42-215-31460
2.5 KM · Superior Oil Company, The · Section with this well →
| Catahoula | 740 | -522 |
| Miocene (undifferentiated) | 1,600 | -1,382 |
| Catahoula | 3,234 | -3,016 |
| Frio | 7,021 | -6,803 |
| Frio | 7,381 | -7,163 |
| Frio | 7,532 | -7,314 |
| Frio | 7,627 | -7,409 |
| Frio | 7,782 | -7,564 |
13 TOPS · FIRST 8
Davis, W. J. 'A'42-215-32955
5.2 KM · Shell Western E&P · Section with this well →
| Miocene (undifferentiated) | 3,716 | -3,439 |
| Catahoula | 5,140 | -4,863 |
| Catahoula | 5,800 | -5,523 |
| Vicksburg | 9,485 | -9,208 |
Stalker Gas Unit42-215-32986
5.8 KM · Merit Energy Company · Section with this well →
| Miocene (undifferentiated) | 4,999 | -4,816 |
| Catahoula | 5,982 | -5,799 |
| Catahoula | 6,598 | -6,415 |
| Vicksburg | 11,502 | -11,319 |
| VX L Sand | 14,376 | -14,193 |
| T Sand | 15,612 | -15,429 |
| Royal 1 | 16,546 | -16,363 |
| Royal 2 | 17,058 | -16,875 |
9 TOPS · FIRST 8
Stalker Gas Unit42-215-33000
5.9 KM · Merit Energy Company · Section with this well →
| Frio | 9,565 | -9,382 |
| Vicksburg | 14,270 | -14,087 |
| L | 14,270 | -14,087 |
| Vicksburg | 16,788 | -16,605 |
| T LO | 16,788 | -16,605 |
| T Lower | 16,788 | -16,605 |
Turner, Evelyn42-215-32821
7.8 KM · Merit Energy Company · Section with this well →
| F-12 | 8,383 | -8,218 |
| F-14 | 8,805 | -8,640 |
| F-17 | 9,495 | -9,330 |
| LO T | 16,711 | -16,546 |
Dixie Mortgage-Hopkins Gas Unit42-215-33753
8.8 KM · Shell Western E&P · Section with this well →
| Vicksburg | 10,904 | -10,569 |
| Vicksburg | 11,690 | -11,355 |
| Vicksburg | 12,138 | -11,803 |
Dixie Mortgage-Hopkins Gas Unit42-215-33340
9.5 KM · Shell Western E&P · Section with this well →
| Vicksburg | 10,320 | -9,977 |
| Vicksvurg W | 10,940 | -10,597 |
| Vicksburg | 10,940 | -10,597 |
| Vicksburg | 11,820 | -11,477 |
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/21531418, documented in the API reference.