2) Flaring is a pure loss of fossil carbon to the atmosphere and should be absolutely minimized. There's a local community near me with an ongoing complaint against Exxon for too much flaring: https://www.bbc.co.uk/news/topics/c6wk2ml6gwzt - on a dark night I can see it myself from 25 miles away.
3) Corporate lobbying can be pro-fossil or pro-renewable. Pro-fossil lobbying generally doesn't have a moral leg to stand on once climate change is taken into account, and they should stop doing it and stop making political donations to pro-climate-change politicians and PACs.
4) BP has a renewables division. Does Exxon?
Just a quick list of things that could be done. Like Philip Morris, they're going to have to acknowledge that their main product is inherently harmful and its use should be phased out.