WELL · 42-163-33433 · DISTRICT 1
Johnston #1ST
Frio County · Pearsall (Austin Chalk) field · Horizontal
Johnston #1ST (API 42-163-33433) is a horizontal well in Frio County operated by EF Energy L.L.C., completed April 5, 2012.
The RRC has issued 2 drilling permits (amended twice) between 2010 and 2012, permitted to 6,200 ft.
Completion filings report 3 formation tops, including Olmos, Austin Chalk, Eagle Ford.
Its 2 leases have reported 11.4K barrels of oil and 3.81K mcf of gas since August 2011, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Apr 2, 2015 · 64 permits on file · (281) 717-4098
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | EF Energy L.L.C. |
| Production reports | Cabot Oil & Gas Corporationthrough Aug 2015 |
| Latest permit | EF Energy, L.L.C.Jul 2, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,200
- total depth, ft
- 4
- permits on file
- Jul 2, 2012
- last permit issued
- Apr 5, 2012
- completed
- 11.4K
- cumulative oil, bbl
- 3.81K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 5, 2012
- Shut in
- —
- Plugged
- —
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 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 |
|---|---|---|---|---|---|---|
| Johnston O-1-15786 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 1 | 9.82K | 3.81K | Aug 2011 – Jul 2026 |
| Johnston O-1-16596 | Pearsall (Austin Chalk) | EF Energy, L.L.C. | 1 | 1.58K | 0 | Jan 2012 – Aug 2013 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EF Energy, L.L.C.Aug 2011 → Aug 2014
- 2Cabot Oil & Gas CorporationOct 2014 → Aug 2015
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 743372-99 | Recompletion | EF Energy, L.L.C. | Jun 21, 2012 | Jul 2, 2012 | Jan 2, 2012 | 6,200 |
| 703541-97 | Drill | EF Energy, L.L.C. | Mar 9, 2012 | Oct 13, 2010 | Oct 30, 2010 | 6,200 |
| 703541-98 | Drill | EF Energy, L.L.C. | May 6, 2011 | Oct 13, 2010 | Oct 30, 2010 | 6,200 |
| 703541-99 | Drill | EF Energy, L.L.C. | Oct 11, 2010 | Oct 13, 2010 | Oct 30, 2010 | 6,050 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-15786 | — | — | — | — |
| — | — O-1-16596 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 550 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 4,196 | -3,646 |
| Austin Chalk | 5,232 | -4,682 |
| Austin Chalk | 5,236 | -4,686 |
| Eagle Ford | 5,830 | -5,280 |
| Eagle Ford | 5,867 | -5,317 |
| Eagle FordEAGLEFORD | 5,867 | -5,317 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,682 | 5,800 | Perforated |
| 6,240 | 6,342 | Perforated |
| 6,896 | 11,360 | Perforated |
| 6,896 | 11,382 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,980 | 12.25 | 1,235 S |
| 5.5 | 11,571 | 8.75 | 1,150 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 | Jun 20, 2013 | Dec 21, 2012 | Yes |
| 00 | Jun 18, 2013 | May 14, 2012 | — |
| 00 | May 3, 2013 | Mar 26, 2012 | Yes |
| 00 | May 16, 2012 | Mar 22, 2012 | 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 42-163-33433 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33433 → 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.
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/16333433, documented in the API reference.