NEW : Report says BP 's team has ` ` substantial omissions and inaccuracies '' and places much of the blame on both Halliburton and Transocean . It says its own team ` ` incorrectly accepted '' test results . Previous testimony pointed fingers at the well design .
NEW : Halliburton says BP 's report has `` substantial omissions and inaccuracies '' Report lays much of the blame on contractors Halliburton and Transocean . BP says its own team `` incorrectly accepted '' test results . Previous testimony pointed fingers at BP well design .