ANCHORAGE, Alaska (AP) — An Alaska oil field contractor says it is laying off 304 workers as the coronavirus pandemic continues to hurt the state’s oil industry. Doyon Drilling, a subsidiary of Interior Alaska Native Regional Corporation Doyon Ltd., informed state regulators of the job losses. Doyon Drilling General Manager Ron Wilson says staff reductions will remain permanent until the industry recovers from the economic crisis sparked by the outbreak of COVID-19. Doyon’s layoffs began April 7 and are expected to continue through the end of May. Other major oil field service companies previously notified the state of more than 250 layoffs.