GERENCIA DE YACIMIENTOS GERENCIA DE YACIMIENTOSJulio 2015 Julio 2015 YACIMIENTO OFIH SCR 218 POZOS ACTIVOS1 POZO INACTIVOPozo Declinacin Anual, %NZZ-161 7,34NZZ-185 31,61NZZ-186 36,99NZZ-196 36,75NZZ-199 18,42NZZ-204 18,38NZZ-274 17,81NZZ-275 16,72NZZ-276 37,09NZZ-286 17,84NZZ-293 N/ANZZ-323 28,16NZZ-331 36,44NZZ-334 11,75NZZ-335 34,57NZZ-342 N/ANZZ-344 N/ANZZ-346 N/ANZZ-347 N/A NZZ-1612008 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 10"% , 0.0734882 A.e./% , 74.7 t% , 06/30/2015te , 06/30/2025(%&al Rate , 58.048 C0*. P!d. , 324.531 1C0*. "ate , 06/30/2015Rese2es , 229.71 1Rese2es "ate , 06/30/202534R , 554.241 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e7,3 % A&0al !",#$ % 1e&s0al NZZ-1852006 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 250.1110100100010000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.316087 A.e./% , 43.4333 t% , 06/30/2015te , 06/30/2025(%&al Rate , 0.971863 C0*. P!d. , 1849.51 1C0*. "ate , 06/30/2015Rese2es , 40.8214 1Rese2es "ate , 06/30/202534R , 1890.33 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e3$,#$ % A&0al !2,#3 % 1e&s0al NZZ-1862006 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 250.1110100100010000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.369948 A.e./% , 67.5333 t% , 06/30/2015te , 06/30/2025(%&al Rate , 0.665281 C0*. P!d. , 1888.03 1C0*. "ate , 06/30/2015Rese2es , 52.8702 1Rese2es "ate , 06/30/202534R , 1940.9 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e3#,%% % A&0al !3,"& % 1e&s0al NZZ-1962007 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25110100100010000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.367498 A.e./% , 394.933 t% , 06/30/2015te , 06/30/2025(%&al Rate , 4.04457 C0*. P!d. , 1918.15 1C0*. "ate , 06/30/2015Rese2es , 311.681 1Rese2es "ate , 06/30/202534R , 2229.83 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e3#,7' % A&0al !3,"# % 1e&s0al NZZ-1992007 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 251510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.184201 A.e./% , 64.1667 t% , 06/30/2015te , 06/30/2025(%&al Rate , 8.37568 C0*. P!d. , 1202.57 1C0*. "ate , 06/30/2015Rese2es , 100.093 1Rese2es "ate , 06/30/202534R , 1302.67 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e$&,2 % A&0al !$,'3 % 1e&s0al NZZ-2042008 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2510501005001000500010000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 1"% , 0.183792 A.e./% , 130.933 t% , 06/30/2015te , 06/30/2025(%&al Rate , 40.2614 C0*. P!d. , 882.936 1C0*. "ate , 06/30/2015Rese2es , 250.46 1Rese2es "ate , 06/30/202534R , 1133.4 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e$&,3& % A&0al !$,'3 % 1e&s0al NZZ-2742011 12 13 14 15 16 17 18 19 20 21 22 23 24 2510501005001000500010000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.178075 A.e./% , 157.1 t% , 06/30/2015te , 06/30/2025(%&al Rate , 22.0993 C0*. P!d. , 768.021 1C0*. "ate , 06/30/2015Rese2es , 251.44 1Rese2es "ate , 06/30/202534R , 1019.46 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e$7,&$ % A&0al !$,& % 1e&s0al NZZ-2752011 12 13 14 15 16 17 18 19 20 21 22 23 24 2510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.167207 A.e./% , 132.867 t% , 06/30/2015te , 06/30/2025(%&al Rate , 21.3146 C0*. P!d. , 522.824 1C0*. "ate , 06/30/2015Rese2es , 222.683 1Rese2es "ate , 06/30/202534R , 745.507 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e$#,72 % A&0al !$,3% % 1e&s0al NZZ-2762011 12 13 14 15 16 17 18 19 20 21 22 23 24 250.11101001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.370938 A.e./% , 57.9333 t% , 06/30/2015te , 06/30/2025(%&al Rate , 0.561812 C0*. P!d. , 396.775 1C0*. "ate , 06/30/2015Rese2es , 45.2078 1Rese2es "ate , 06/30/202534R , 441.983 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e37,"% % A&0al !3,"% % 1e&s0al NZZ-2862011 12 13 14 15 16 17 18 19 20 21 22 23 24 2510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.178394 A.e./% , 92.1333 t% , 06/30/2015te , 06/30/2025(%&al Rate , 12.9103 C0*. P!d. , 663.3 1C0*. "ate , 06/30/2015Rese2es , 147.262 1Rese2es "ate , 06/30/202534R , 810.562 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e$7,& % A&0al !$,% % 1e&s0al NZZ-3232013 14 15 16 17 18 19 20 21 22 23 24 251510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.281602 A.e./% , 538.267 t% , 06/30/2015te , 06/30/2025(%&al Rate , 19.6994 C0*. P!d. , 332.682 1C0*. "ate , 06/30/2015Rese2es , 572.691 1Rese2es "ate , 06/30/202534R , 905.373 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e2&,$# % A&0al !2,3' % 1e&s0al NZZ-3312014 15 16 17 18 19 20 21 22 23 24 251510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.364351 A.e./% , 399.567 t% , 06/30/2015te , 06/30/2025(%&al Rate , 4.30026 C0*. P!d. , 191.893 1C0*. "ate , 06/30/2015Rese2es , 318.624 1Rese2es "ate , 06/30/202534R , 510.517 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e3#, % A&0al !3," % 1e&s0al NZZ-3342014 15 16 17 18 19 20 21 22 23 24 2510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.117499 A.e./% , 322 t% , 06/30/2015te , 06/30/2025(%&al Rate , 92.243 C0*. P!d. , 86.874 1C0*. "ate , 06/30/2015Rese2es , 671.375 1Rese2es "ate , 06/30/202534R , 758.249 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e$$,7' % A&0al !",%& % 1e&s0al NZZ-3352014 15 16 17 18 19 20 21 22 23 24 251510501005001000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 0"% , 0.345735 A.e./% , 193.733 t% , 06/30/2015te , 06/30/2025(%&al Rate , 2.78284 C0*. P!d. , 65.068 1C0*. "ate , 06/30/2015Rese2es , 164.398 1Rese2es "ate , 06/30/202534R , 229.466 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&e3,'7 % A&0al !2,&& % 1e&s0al YACIMIENTO OFIH N(("2&$4 POZOS ACTIVOS0 POZOS INACTIVOSPozo Declinacin Anual, %NZZ-281 8,19NZZ-340 N/ANZZ-345 N/ANZZ-348 N/A 2011 12 13 14 15 16 17 18 19 20 21 22 23 24 251005001000500010000Tasa Real de Pet

!le!"ate#!$%&' (!e)astPaa*etesP+ase , O%lCase Na*e , Case1- , 5.08777"% , 0.0819651 A.e./% , 1382.97 t% , 06/30/2015te , 06/30/2025(%&al Rate , 958.664 C0*. P!d. , 1810.05 1C0*. "ate , 06/30/2015Rese2es , 4004.86 1Rese2es "ate , 06/30/202534R , 5814.91 1(!e)ast 3&ded 56 , T%*e"5 (!e)ast "ate , N!t Sa2edRese2e T67e , N!&eNZZ-281&,$% % A&0al !",#& % 1e&s0al