ROBERTS, DORA, -A-

Oil // district 10 // lease#2810

op: SOUTHLAND ROYALTY COMPANY

cum_oil

219k BBL

cum_gas

0 MCF

wells

21

production

1993-01 — 2012-08

peak_month

1998-09

-- production_history

cum_oil: 219,467 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,375 BBL/mo

Di (annual)

13.2%

b-factor

0.0

EUR

125,192 BBL

R-squared

0.488

type

exponential

-- wells (21)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
20SOUTHLAND ROYALTY COMPANY23,2501998-05-28
22LSOUTHLAND ROYALTY COMPANY33,3501998-02-19
22USOUTHLAND ROYALTY COMPANY33,3501998-02-19
25LORYX ENERGY COMPANY13,3001998-02-13
25UORYX ENERGY COMPANY13,3001998-02-13
26LORYX ENERGY COMPANY13,3001998-02-11
26UORYX ENERGY COMPANY13,3001998-02-11
24LORYX ENERGY COMPANY13,3001998-02-06
24UORYX ENERGY COMPANY13,3001998-02-06
23SOUTHLAND ROYALTY COMPANY24,6001992-04-29
1042-227-02965--------
1242-227-02967--------
1342-227-02968--------
1442-227-10501--------
1542-227-10565--------
1642-227-10727--------
17D42-227-31111--------
1842-227-31114--------
542-227-02959--------
842-227-02963--------
942-227-02964--------
EOF // data source: Texas Railroad Commission // 2026