Kammala wannan jumla: An ɗauke shi aiki, a watan Mayu 2010, a matsayin mataimakin shugaban kamfanin ginin iyalinsa. Bayan shekara ta 2010
BP mai zuba, an ba shi aikin samar da wani reshe na kamfanin mahaifinsa, mai suna Coastal Environmental, wanda ya tabbatar da kwangila don cire mai a Gulf of Mexico. Murphy ya yi aiki a matsayin mataimakin shugaban Coastal Environmental, kuma yana ɗaya daga cikin daraktocinsa uku daga 2010 zuwa 2012 (bayan da aka zaɓe shi a Majalisa, Murphy ya sauka a matsayin darekta amma ya kasance mai shi). A matsayinsa na mataimakin shugaban, ya gudanar da ayyukan kamfanin na yau da kullun har tsawon watanni shida, har zuwa Oktoba 2010, lokacin da Jami'an Tsaro suka dakatar da ayyukan man fetur a cikin Gulf. PolitiFact.com ta gano cewa "Bayanan Murphy game da aikinsa na baya ya dogara ne akan ainihin yanayi, amma wani lokacin ya bar cikakken bayani".