UNIVERSITY "21-18"

Oil // district 10 // lease#24358

op: RHOMBUS OPERATING CO., LTD

cum_oil

121k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

2004-05

-- production_history

cum_oil: 121,199 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

773 BBL/mo

Di (annual)

31.7%

b-factor

0.4

EUR

46,249 BBL

R-squared

0.384

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PERCUSSION PETROLEUM OPER II,LLC18,7002022-05-06
2CITIES SERVICE OIL & GAS CORP.111,4501984-04-04
EOF // data source: Texas Railroad Commission // 2026