LATHEM MARY K UNIT

Oil // district 14 // lease#7174

op: RIO PETROLEUM, INC.

cum_oil

67k BBL

cum_gas

0 MCF

wells

1

production

1996-12 — 2026-03

peak_month

1997-07

-- production_history

cum_oil: 66,954 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,418 BBL/mo

Di (annual)

324.1%

b-factor

0.9

EUR

53,944 BBL

R-squared

0.882

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RIO PETROLEUM, INC.16,6001996-09-03
EOF // data source: Texas Railroad Commission // 2026