ARCO-UNIVERSITY

Oil // district 9 // lease#10420

op: JM COX RESOURCES, L.P.

cum_oil

43k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

1999-01

-- production_history

cum_oil: 42,544 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

661 BBL/mo

Di (annual)

39.2%

b-factor

0.4

EUR

32,409 BBL

R-squared

0.732

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1XRI DISPOSAL HOLDINGS, LLC311,8002025-03-04
2COX, JOHN L.111,7001998-10-13
EOF // data source: Texas Railroad Commission // 2026