Actually there's a third option, keep your original shares, sell the rights only.
1) Dump and dont look back
2) Sell only the Rights, keep the shares (you get some money back, but your original share will be diluted)
3)Subscribe to the rights issue and pump more money in, but knowing the stock's finances are better, and can last longer if there is a recovery.
Which option is best, i'm not vested so hard to give advice

. I'd say option number two: is a balance of both, if the share value falls, at least you sold the rights and took some cash back. If it goes up, at least you kept your original shares.
You will need to ask yourself what is the outlook on oil and gas, the maritime sector, the price of oil, etc. then go from there. Good luck!