<prompt> Qedela umusho olandelayo: Izenzakalo eziphawulekayo ngesikhathi sokuba ngumongameli kuka-Obama zagxila ezingozini zokumbiwa kukawoyela emanzini ajulile eSizeni Sezomnotho Esiyingqayizivele sase-U.S. Ukuqhuma kuka-Ephreli 2010 emthonjeni waseMacondo, umlilo owalandela nokucwila kwepulatifomu yokumba i- Deepwater Horizon, nokuchitheka kukawoyela eGulf of Mexico kwenzeka ngokushesha nje ngemva kokuba uMnyango Wezangaphakathi ukhiphe uhlelo lweminyaka emihlanu lokufuna ukuthuthukiswa kukawoyela negesi e-US outer continental shelf OCS. UMongameli u-Obama wayala ukuba kuvalwe ukuqhuma kwe-OCS futhi wamisa ikomiti lamaqembu amabili ukuba inqume izimbangela zokuqhuma futhi income izinqubomgomo zokuvimbela izinhlekelele zesikhathi esizayo. Ikhomishini yathola izinkinga ezinkulu ekwakhiweni nasekusetshenzisweni koHlelo Lukazwelonke Lwezinto Ezingalindelekile ngaphansi koMthetho Wokungcoliswa Kwe-Oil ka-1990, owakhishwa kulandela ukuvulwa koMthethosisekelo waseNingizimu Afrika ngo-1998.  <response>: Ukuchitheka kuka-Exxon Valdez e-Alaska. Izikhungo zoMnyango Wezangaphakathi ezibhekele ukwengamela ukuthuthukiswa kwamandla e-OCS zahlelwa kabusha ukuze kuhlukaniswe ukuqashisa kanye nemali engenayo ekulawuleni nokuphoqelelwa kokuphepha. 