42-003-38502
Final Completion HorizontalUNIVERSITY BLOCK 9
ANDREWS County · District 8 · XTO ENERGY INC.
Permits
5
Max Depth
10,700 ft
First Permit
1999-07-29
Latest Activity
2009-05-15
Lifespan
10 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
1998-11
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (9) Elevation 3,151 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRAYBURG | 4,600 ft | -1,449 ft |
| SAN ANDRES | 4,925 ft | -1,774 ft |
| TUBB | 6,010 ft | -2,859 ft |
| WOLFCAMP | 8,390 ft | -5,239 ft |
| PENN (Pennsylvanian) | 8,745 ft | -5,594 ft |
| MISSISSIPPIAN | 9,941 ft | -6,790 ft |
| WOODFORD | 10,299 ft | -7,148 ft |
| DEVONIAN | 10,370 ft | -7,219 ft |
| DEVONIAN | 10,371 ft | -7,220 ft |
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 (9)
| Interval | Type |
|---|---|
| 10,174–12,131 ft | Perforated |
| 10,380–11,908 ft | Perforated |
| 10,381–11,915 ft | Perforated |
| 10,389–10,420 ft | Perforated |
| 10,389–10,660 ft | Perforated |
| 10,460–10,468 ft | Perforated |
| 10,500–10,510 ft | Perforated |
| 10,522–10,534 ft | Perforated |
| 10,580–10,593 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 311 ft | 375 sx |
| 13.375" | 312 ft | 375 sx |
| 8.625" | 5,203 ft | 1,060 sx |
| 8.625" | 5,203 ft | 1,875 sx |
| 5.5" | 10,721 ft | 725 sx |
Permit History (5)
UNIVERSITY BLOCK 9 · 10,650 ft
2009-05-15
Spud 2009-09-25
UNIVERSITY BLOCK 9 · 10,650 ft
2009-02-25
UNIVERSITY 9 CEC · 10,650 ft
2009-02-25
UNIVERSITY 9 CEC · 10,700 ft
2000-08-02
Spud 2000-08-09
UNIVERSITY 9 CEC · 10,700 ft
1999-07-29
Spud 1999-09-13
Applications (5)
Records & Logs
6 completion filings on record · 3 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 8EC
- Max Depth
- 10,700 ft
- Drill Type
- Horizontal
- County
- ANDREWS
- District
- 8
- Operator
- XTO ENERGY INC.
Operator
- Name
- XTO ENGY INC
- Location
- SPRING
- P-5 Status
- X (filed 2026-04-08)
- Cum Oil (all leases)
- 772,419,164 bbl
- Cum Gas (all leases)
- 11,039,899,986 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 16,138