42-297-35838
PRODUCING HorizontalSAN CHRISTOVAL RANCH UNIT B
LIVE OAK County · District 2 · MARATHON OIL EF LLC · SUGARKANE (EAGLE FORD)
Permits
1
Max Depth
18,600 ft
First Permit
2016-04-26
Latest Activity
2016-04-26
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2016-09-30
Shut-In
—
Plugged
—
P-5 Org Status: Active
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
2016-09
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 387 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| HOCKLEY - DISPOSAL | 723 ft | -336 ft |
| JACKSON-YEGUA - DISPOSAL (Jackson) | 1,346 ft | -959 ft |
| COOK MOUNTAIN | 2,392 ft | -2,005 ft |
| QUEEN CITY | 3,585 ft | -3,198 ft |
| WILCOX | 5,909 ft | -5,522 ft |
| AUSTIN CHALK | 11,349 ft | -10,962 ft |
| EAGLE FORD - H2S (Eagle Ford) | 11,391 ft | -11,004 ft |
| EDWARDS - H2S (Edwards) | — | — |
| FRIO - DISPOSAL (Frio) | — | — |
| SLIGO - H2S (Sligo) | — | — |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (1)
| Interval | Type |
|---|---|
| 11,573–17,648 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 5,699 ft | 1,731 sx |
| 5.5" | 17,750 ft | 2,914 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 503H
- Max Depth
- 18,600 ft
- Drill Type
- Horizontal
- County
- LIVE OAK
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2016-09-30
Operator
- Name
- MARATHON OIL EF LLC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-09-26)
- Cum Oil (all leases)
- 409,189,156 bbl
- Cum Gas (all leases)
- 1,029,735,602 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,173