UNIVERSITY ANDREWS 42

Oil // district 10 // lease#42162

op: XOG OPERATING LLC

cum_oil

105k BBL

cum_gas

0 MCF

wells

4

production

2011-10 — 2026-03

peak_month

2012-06

-- production_history

cum_oil: 105,333 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,398 BBL/mo

Di (annual)

23.4%

b-factor

0.0

EUR

71,617 BBL

R-squared

0.377

type

exponential

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4XOG OPERATING LLC214,4002016-12-20
3XOG OPERATING LLC112,5002011-09-07
1XOG OPERATING LLC112,5002011-07-14
2XOG OPERATING LLC114,4002011-07-14
EOF // data source: Texas Railroad Commission // 2026