▁He ▁competed ▁in ▁the ▁men ' s ▁tournament ▁at ▁the ▁ 1 9 6 0 ▁Summer ▁Olympics . ▁ ▁References ▁ ▁Category : 1 9 3 8 ▁birth s ▁Category : L iving ▁people ▁Category : Per uv ian ▁football ers ▁Category : Per u ▁international ▁football ers ▁Category : O lymp ic ▁football ers ▁of ▁Peru ▁Category : Foot ball ers ▁at ▁the ▁ 1 9 6 0 ▁Summer ▁Olympics ▁Category : S ports people ▁from ▁Lima ▁Category : Associ ation ▁football ▁def enders <0x0A> </s> ▁Niger ▁has ▁a ▁long ▁history ▁of ▁pet role um ▁expl oration ▁d ating ▁back ▁to ▁the ▁ 1 9 7 0 s . ▁However , ▁it ▁is ▁only ▁recently ▁in ▁ 2 0 1 1 ▁that ▁the ▁pet role um ▁industry ▁of ▁Niger ▁was ▁born ▁with ▁the ▁opening ▁of ▁the ▁Ag adem ▁oil field ▁and ▁the ▁Sor az ▁ref in ery ▁near ▁Z inder . ▁The ▁oil ▁and ▁gas ▁extracted ▁from ▁the ▁Ag adem ▁field ▁are ▁processed ▁at ▁the ▁Sor az ▁ref in ery ▁and ▁products ▁( gas oline , ▁dies el ▁and ▁liqu ified ▁natural ▁gas ) ▁are ▁primarily ▁for ▁domestic ▁consumption . ▁Since ▁the ▁beginning ▁of ▁the ▁oil ▁extra ction , ▁it ▁appears ▁that ▁the ▁res erves ▁have ▁been ▁under est im ated : ▁from ▁an ▁estimate ▁of ▁ 3 2 4 ▁million ▁bar rel ▁res erves ▁in ▁ 2 0 0 8 , ▁it ▁is ▁believed ▁that ▁res erves ▁are ▁three ▁times ▁higher , ▁near ▁ 1 ▁billion ▁bar rel s ▁in ▁