UNIVERSITY BLK 21

Oil · District 08 · Lease #45128

Operator: XTO ENERGY INC.

Cum Oil

2.1M BBL

Cum Gas

2.8M MCF

casinghead

Wells

6

Production

2013-07 — 2026-04

Peak Month

2015-02

Production History

Cum Oil: 2,070,510 BBL Cum Gas: 2,776,548 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

26,007 BBL/mo

Di (annual)

15.3%

b-factor

0.0

EUR

2,040,190 BBL

R-squared

0.567

type

exponential

Operator History (from monthly production reports)

2013-07 — 2026-07 XTO ENERGY INC. 157 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1810HXTO ENERGY INC.212,5002017-04-17
1805HXTO ENERGY INC.413,4002016-02-01
1804HXTO ENERGY INC.116,6692014-07-25
1803HXTO ENERGY INC.116,6352014-07-24
1802HXTO ENERGY INC.212,5002013-08-26
1801HXTO ENERGY INC.112,0002013-03-18