(S (S (BASENP (NNP BP)) (VP (VP (VP (VBD released) (NP (BASENP (PRPD their) (NN report)) (PP (IN into) (NP (BASENP (DT the) (NNS causes)) (PP (IN of) (NP (BASENP (DT the) (NNP Deepwater) (NNP Horizon) (NN disaster)) (ADVP (ADVP (RBR earlier)) (BASENP (DT this) (NN year))))))))) (PP (IN on) (BASENP (NNP Wednesday)))) (CONJP (COMMA ,) (CC and)) (VP (VP (VBD shifted) (NP (BASENP (JJ much)) (PP (IN of) (NP (BASENP (DT the) (NN blame)) (PP (IN for) (NP (NP (DT the) (NP (BASENP (NN explosion)) (CC and) (NP (BASENP (JJ subsequent) (NN oil) (NNS spill)) (PP (IN in) (NP (BASENP (DT the) (NNP Gulf)) (PP (IN of) (BASENP (NNP Mexico)))))))) (PRN (COMMA ,) (NP (BASENP (DT the) (JJS largest) (JJ accidental) (JJ marine) (NN oil) (NN spill)) (PP (IN in) (NP (BASENP (DT the) (NN history)) (PP (IN of) (BASENP (DT the) (NN petroleum) (NN industry)))))) (COMMA ,)))))))) (PP (IN onto) (COMMA ,) (NP (BASENP (DT the) (NN company)) (VP (VBG managing) (BASENP (DT the) (NN rig)))))))) (PERIOD .))