WELL · 42-255-31235 · DISTRICT 2
Hysaw-Hobson #4A
Karnes County · Hobson field · Producing · Vertical
Hysaw-Hobson #4A (API 42-255-31235) is a well in Karnes County operated by Jaybird Operating LLC, completed October 17, 1989 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 20, 1989, permitted to 5,000 ft.
It was permitted by Natural Energy, Inc. and has since transferred to Jaybird Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Reklaw.
Its lease has reported 139K barrels of oil and 19 mcf of gas since January 1993, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Natural Energy, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Apr 4, 2026 · (918) 576-1347
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Jaybird Operating LLC |
| Production reports | Jaybird Operating, LLCthrough Apr 2026 |
| Latest permit | Natural Energy, Inc.Sep 20, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,000
- total depth, ft
- 1
- permits on file
- Sep 20, 1989
- last permit issued
- Oct 17, 1989
- completed
- 139K
- cumulative oil, bbl
- 19
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 17, 1989
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: 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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hysaw-Hobson O-2-7526 | Hobson | Jaybird Operating, LLC | 3 | 139K | 19 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 335 · prior 12 1,504(-78%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Natural Energy, Inc.Jan 1993 → Oct 1996
- 2F&H Energy,ltd.Nov 1996 → Sep 2005
- 3Rockwell Energy, LLCOct 2005 → Sep 2006
- 4Proex Energy Management, L.L.C.Oct 2006 → Nov 2007
- 5Tradestar Energy, Inc.Dec 2007 → Dec 2010
- 6Viceroy Petroleum, LPJan 2011 → Dec 2024
- 7Wolfe Oil CompanyJun 2025 → Sep 2025
- 8Jaybird Operating, LLCOct 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 364100-99 | Drill | Natural Energy, Inc. | Sep 19, 1989 | Sep 20, 1989 | Oct 12, 1989 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-7526 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 411 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Reklaw | 3,998 | -3,587 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,967 | 3,969 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 470 | 12.25 | 245 S |
| 5.5 | 4,350 | 7.875 | 650 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 | Dec 19, 1989 | Nov 2, 1989 | Yes |
| 00 | Nov 15, 1989 | — | — |
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 42-255-31235 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31235 → 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/25531235, documented in the API reference.