NEW : BP given green light to pour cement down well as part of ` ` static line '' Report : U.S. - BP must still proceed with the well . NEW : Louisiana officials submit long - term cleanup plan . BP exec says well - planned efforts so far have gone ` ` extremely well ''
NEW : BP given green light to pour cement down well as part of `` static kill '' NEW : U.S. says BP must still proceed with relief well . NEW : Louisiana officials submit long-term cleanup plan . BP exec says well-killing efforts so far have gone `` extremely well ''