Former Vice President Joe Biden sparred with President Trump on fracking during the final presidential debate, saying he would push for the oil industry to be replaced by renewable energy over time and eliminate federal subsidies for the industry. Photo: Chip Somodevilla/AFP Joe Biden’s remarks Thursday that he would seek to phase out oil stoked concerns among some oil and gas executives that a Democratic administration would further weigh down an industry hard hit by the coronavirus pandemic. Mr. Biden’s interest in tightening regulations on oil and gas while embracing cleaner forms of energy isn’t new. The former vice president has campaigned on policies including restricting greenhouse-gas emissions and banning new oil and gas permits on federal land. But…