Saudi Aramco's plan and interest but it is not certain that it will be implemented.
If large oil companies use the excess gas generated from oil extraction to mine Bitcoin, it can depress the profit of mining, so that miners do not use coal or other fossil fuels for mining, which is good for the environment and beneficial to the future development of Bitcoin.
Saudi Arabia has large number of Refineris where Flare gas is burnt which in fact pollutes the atmosphere and using Flare gas to mine Bitcoin is not a bad idea and it won't harm the enviorment becuase Flare gas is burnt and smoke exhaused to atmosphere so reducing the exhaust to atmosphere and in stead convert it to produce electrcity will in fact enviorement friendly idea but this news is not yet confirmed by ARAMCO.