TEXAS · WELLS · LIVE OAK COUNTY · 74 RANCH-GUAJILLO UNIT A AC LEASE · API 42-297-35982 · DISTRICT 02
74 Ranch-Guajillo Unit a AC #1H
Live Oak County · Sugarkane (Austin Chalk) field · Producing · Horizontal
74 Ranch-Guajillo Unit A AC #1H (API 42-297-35982) is a horizontal well in Live Oak County operated by Marathon Oil EF LLC, completed June 5, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 31, 2018, permitted to 10,858 ft.
Completion filings report 10 formation tops, including Queen City, Wilcox, Austin Chalk, Cook Mountain.
Its lease has reported 151K barrels of oil and 271K mcf of gas since March 2019, last reporting in July 2026.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 26, 2025
- Permits on file
- 3,191
- Phone
- (832) 486-2737
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil EF LLC |
| Production reports | Marathon Oil EF LLCthrough Apr 2026 |
| Latest permit | Marathon Oil EF LLCDec 31, 2018 |
- 10,858
- total depth, ft
- 1
- permits on file
- Dec 31, 2018
- last permit issued
- Jun 5, 2019
- completed
- 151K
- cumulative oil, bbl
- 271K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 5, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
28.635708, -98.296983
Permit surface location from the RRC GIS record, in Live Oak County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| 74 Ranch-Guajillo Unit a AC O-2-11724 | Sugarkane (Austin Chalk) | Marathon Oil EF LLC | 1 | 151K | 271K | Mar 2019 – Jul 2026 |
Oil, barrels lease total
Last 12 months 6,761 · prior 12 4,646(+46%)
Gas, mcf lease total
Last 12 months 983 · prior 12 1,318(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCJun 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 847198-99 | Drill | Marathon Oil EF LLC | Nov 27, 2018 | Dec 31, 2018 | May 10, 2019 | 21,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 5, 2019 | 74 Ranch-Guajillo Unit a AC O-2-11724 | Sugarkane (Austin Chalk) | Marathon Oil EF LLC | Producing | 10,858 |
Formation tops
As filed on W-2/G-1. Subsea from 231 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 3,091 | -2,860 |
| Wilcox | 5,499 | -5,268 |
| Austin Chalk | 10,958 | -10,727 |
| Austin Chalk | 11,014 | -10,783 |
| Cook Mountain | — | — |
| Eagle FordEAGLE FORD - H2S | — | — |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| Hockley - Disposal | — | — |
| JacksonJACKSON-YEGUA - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,468 | 17,892 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,421 | 12.25 | 1,762 S |
| 5.5 | 18,000 | 8.75 | 3,166 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 | Oct 15, 2019 | Jun 30, 2019 | Yes |
| 00 | Jun 4, 2019 | May 16, 2019 | 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 42-297-35982 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-297-35982 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
74 Ranch-Guajillo Unit A42-297-35981
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 3,091 | -2,860 |
| Wilcox | 5,499 | -5,268 |
| Austin Chalk | 10,948 | -10,717 |
| Eagle Ford | 11,041 | -10,810 |
| Frio | — | |
| Edwards | — | |
| Cook Mountain | — | |
| Sligo | — |
10 TOPS · FIRST 8
74 Ranch-Guajillo Unit A42-297-35980
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 3,091 | -2,860 |
| Wilcox | 5,499 | -5,268 |
| Austin Chalk | 10,957 | -10,726 |
| Eagle Ford | 11,051 | -10,820 |
| Jackson | — | |
| Hockley - Disposal | — | |
| Sligo | — | |
| Edwards | — |
10 TOPS · FIRST 8
74 Ranch-Guajillo Unit A42-297-35979
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 3,091 | -2,860 |
| Wilcox | 5,499 | -5,268 |
| Austin Chalk | 10,962 | -10,731 |
| Eagle Ford | 11,053 | -10,822 |
| Jackson | — | |
| Hockley - Disposal | — | |
| Sligo | — | |
| Edwards | — |
10 TOPS · FIRST 8
74 Ranch-Guajillo Unit A42-297-35978
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 3,091 | -2,860 |
| Wilcox | 5,499 | -5,268 |
| Austin Chalk | 10,958 | -10,727 |
| Eagle Ford | 11,056 | -10,825 |
| Sligo | — | |
| Jackson | — | |
| Cook Mountain | — | |
| Frio | — |
10 TOPS · FIRST 8
Guajillo West42-297-35885
0.1 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 2,950 | -2,717 |
| Wilcox | 5,240 | -5,007 |
| Austin Chalk | 10,911 | -10,678 |
| Eagle Ford | 11,030 | -10,797 |
| Frio | — | |
| Hockley - Disposal | — | |
| Jackson | — | |
| Cook Mountain | — |
10 TOPS · FIRST 8
Guajillo West42-297-35886
0.1 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 2,950 | -2,718 |
| Wilcox | 5,240 | -5,008 |
| Austin Chalk | 10,910 | -10,678 |
| Eagle Ford | 11,029 | -10,797 |
| Sligo | — | |
| Frio | — | |
| Hockley - Disposal | — | |
| Jackson | — |
10 TOPS · FIRST 8
Guajillo West42-297-35884
0.1 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 2,950 | -2,715 |
| Wilcox | 5,240 | -5,005 |
| Austin Chalk | 10,928 | -10,693 |
| Eagle Ford | 11,048 | -10,813 |
| Frio | — | |
| Edwards | — | |
| Cook Mountain | — | |
| Sligo | — |
10 TOPS · FIRST 8
Guajillo West42-297-35883
0.1 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 2,950 | -2,715 |
| Wilcox | 5,240 | -5,005 |
| Austin Chalk | 10,927 | -10,692 |
| Eagle Ford | 11,043 | -10,808 |
| Jackson | — | |
| Hockley - Disposal | — | |
| Sligo | — | |
| Edwards | — |
10 TOPS · FIRST 8
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/29735982, documented in the API reference.