MS. BETTYE

Oil // district 13 // lease#28161

op: RIO PETROLEUM, INC.

fields: RIO (CHAPPEL)

cum_oil

1.0M BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

1997-09

-- production_history

cum_oil: 1,002,981 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

12,327 BBL/mo

Di (annual)

16.0%

b-factor

0.0

EUR

925,897 BBL

R-squared

0.409

type

exponential

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1136RIO PETROLEUM, INC.28,8002000-10-04
3136RIO PETROLEUM, INC.18,8001996-03-08
EOF // data source: Texas Railroad Commission // 2026