  H10888/99--OPR-KI71-KR;  AN UNCHARTED OBSTRUCTION WHICH APPEARS TO BE MAN-MADE DEBRIS RESULTING FROM OIL AND GAS OPERATIONS WAS FOUND BY SIDE SCAN SONAR AND MULTIBEAM ECHOSOUNDER IN LATITUDE 28/46/13.45N, LONGITUDE 093/11/11.60W (NAD83) WITH A LEAST DE