Dubai: Qatar’s central bank will offer 2 billion riyals (Dh2 billion, $550 million) of Treasury bills in an auction this week, according to an invitation sent to banks and seen by Reuters.

Bids are due on Monday and results of the auction on Tuesday. The offer comprises 1 billion riyals of three-month bills, 500 million riyals of six-month bills and 500 million riyals of nine-month bills.

Between January and March, the central bank cancelled its monthly sales of T-bills because of tightening liquidity in the banking system due to low oil prices.

But since then, liquidity appears to have improved somewhat.

On April 5, the central bank sold 1.5 billion riyals of three-, six- and nine-month T-bills.

The May auction roughly coincides with the maturation of 1.5 billion riyals of T-bills, bankers said.