Reserve Quantity Information (Unaudited):
<br />The Company's net proved oil and gas reserves as of June 30, ~a` inlcll
<br /> Proved Reserves Twat United Slutes Canada
<br />1986, 1985,1984 and 1983 have been estimated by
<br />
<br />independent petroleum engineers Reserves at July I, 1483 9,b51,G514 9.171,4a5 177,713
<br />. Ealensiuns. Dino,-ene, and
<br />The following summary sets forth the estimated net Ou,er AdcLtinns 55,!a4 5s,'_a4 -
<br />quantities of the Company's proved resen-es and proved Net KeviS~ons a Previous
<br />developed reserves as of June 30, 1986, 1985. 1984 and 1983 Estimams n.z4a6zrn u.5u6,66n 16,w1
<br />and the changes in the estimated net quantities of the Prndtiaion u,x,9.5Ta1 n.!!G xzll Ia!sun
<br />Company's proved reserves for the period July 1, 1983 Keserves dl tune 3u, I9Ha 7,u6,455 n,495.7u4 151,!aa
<br />thrOUgh IUlle 30, 1986. Extensions, Discoveries and
<br /> Uther Additions S, ihU,_'U4 1.560, _'U~I -
<br /> Sole wReserves 1151,2a11 - (15I,21a1
<br />Ud IBbls) Purchase ui Resenes 51!,S!8 Sa!.428 -
<br />Pruved Reserves Tulal Untied States Canada Net Revisions of Previous
<br />' Re>erves al luly 1, 1985 2pS1,381 2A31,18ti 1,848 Estimates (11 Q.6a 1,66a1 ILGd_',Sial 710
<br />Exteroiuns, Discoveries and Production 1%117,2161 Ii 0L,5u61 17101
<br />Other Additions 15,261 15,261 - Reserves at lone 30, 19R$ 7,Sa 9.564 :,Sa 4,56b -
<br />Nel Revisions of Previous Etlension•, Discoveries and
<br />Estimates 119,1 i41 (IN,8801 1?541 Ulher Additions I_'0,1a9 I!U.la4 -
<br />Pnxiuclion 13a5A11a1 (5-1-0,4H0) 12a) Purchase of Reserves hb,lL'S 06.0!5 -
<br />Reserves al lure 30, 19Ha 1,6Ha,5U2 I,GH2,R87 1,615 Nel Revision. of Previous
<br />Exlensirnb, Discoveries and Estimates (11 11 ,624,a061 11 ,o!a,aUbl -
<br />OlherAdditions 166,170 Ibb,l70 - Poduclion (71 h,Gtt {I 1; 16 X0857 -
<br />Sale of Reserves (1,6151 - 11.6151 Reserves al lone 311, 19Hh 5.39a.151 5, i4a,151 -
<br />Purchase of Resene> 11, 19' I a, l92 -
<br />Puned De~rlul,ed Keen es
<br />Net Revsions of Previous
<br />Estimates 111 (HSi,a S?I 1837,a 521 - Reserves at luly 1,1481 ',!911,Sb1 7,112,S8H 177,715
<br />Producliun 11774531 f17',9iSi Reserves at lone 30. 1481 7,116,`SS 6,445,; OH I51,_'aa
<br />Reserves al lure 3U, I9H5 Sa7.Ha1 Ha%,811 - Resen~es al lure 30, 1985 i.0_'S,S96 i.ll2 S, 446 -
<br />Eaensmn>, Drsurverie< and
<br />Other gddiliau IBbl19 18,604 - Reserves at luny 50, I4H6 5,541A51 ; 141,a 51 -
<br />Purchme ni Reserves 1,951 1.95a -
<br />Nel Reunions nl Prevuxu 111 Piimanly represent downward r eunion of n~se nos lui Ihr Company's
<br />blimales 111 1518,7041 IS 18,'1141 - Tulare Lake Reld clue lu producti on pn,blenn.
<br />Producliun (4!,1921
<br />14?,a 9!1 -
<br />_ Standardized Measure of Discounted Future Net Cash
<br />Reserves at lure Su, 14H6 26o,zu6 z6u.!o6
<br />- Flows and Changes Therei n Relating t o Proved Oil and
<br />Pruved Developed Reserves
<br />Gas Reserves (Unaudited):
<br />Rescreen at lulu 1.19H3 1,01!,019 _ L0111,121 I,H98
<br />Keaerves al lone Stl, 19H4 1,681,502 1,682,H87 I,GIS
<br />Reserves at lone 50, 1485 i %74,156 778.156
<br />Rutierves at tune S0, 1986 ?60,206 - 260,206
<br />II I Primarily repre~enls dum•mva rd revision of reserves `or the Company's
<br />Tulare Lake Field due to pnxlucliun prublena.
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