Какие перемещения» по большому текстовому документу вам известны?

1.we know that ore - its a rock, earth and etc. from which you can get iron.
2. improved profitability of oil production has led to increased investment at new oil fields. especially in the north sea what weakened ОПЕК control all over the world reservers
3. We know that british gas company get gas very cost-effective at the small part of north sea.