Shell (RDS.A) Ends Permian Asset Sale, Begins Stock Buyback Posted byZacks Equity Research December 3, 2021 Leave a comment on Shell (RDS.A) Ends Permian Asset Sale, Begins Stock Buyback Shell (RDS.A) to use the cash proceeds from the Permian asset sale to buy back up to $1.5 billion of shares from Dec 2, 2021 through Jan 28, 2022.