@russeurope @NPR happy to be corrected if you have better and more up to date sources please have at it. I Look forward to reading.
Majors and international oil companies have bought into US shale—but together still account for less than 20% of total shale
October 21, 2020
Majors and international oil companies have bought into US shale—but together still account for less than 20% of total shale production. From Equinor’s remarkable postmortem