how drilling the oil from sea.
1- problem and solution about 100 words source from video you will find between 3 mins to 7 mins ( Grand lake ).you will find what i want between 3 mins to 7 mins.

2-problem and solution about 100 words source from video i attched you will find between 11 mins to 14 mins ( Grand island ).you will find what i want between 11 mins to 14 mins

3- problem and solution about 100 words source from reading from what i attched. i want the source jurnal source.