MASTERSON "B"

Oil // district 14 // lease#5919

op: RIATA ENERGY, INC.

cum_oil

11k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

1993-03

-- production_history

cum_oil: 11,196 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

118 BBL/mo

Di (annual)

19.5%

b-factor

0.0

EUR

7,187 BBL

R-squared

0.393

type

exponential

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
902OPTOPCO*, INC.12,3001986-12-30
1204OPTOPCO*, INC.12,3001984-09-11
1205OPTOPCO*, INC.12,3001984-09-11
1206OPTOPCO*, INC.12,3001984-09-11
1202OPTOPCO*, INC.12,3001984-08-23
1203OPTOPCO*, INC.12,3001984-08-23
901OPTOPCO*, INC.12,3001984-08-23
1201OPTOPCO*, INC.12,3001984-08-20
120942-375-30150--------
121042-375-30087--------
EOF // multi-state drilling data platform // 2026