"This is largely reflective of the price environment we're in," said Dawn Patience, press officer for BP Alaska."  
I`d say it was "largely" because SB21 gave away the farm as well as the "floor" oil production tax that was based on the gross, that "wasn`t supposed to be pierced" under SB21"..
..... so said Hawker, and Giessel, and McKinnon, and Micciche, and Meyer.