** Shares of Perenti PRN.AX fall as much as 4% to A$1.690, their lowest level since July 18

** Mining services provider says MMG Dugald River Pty has claimed about A$46 million ($29.96 million) from unit Barminco relating to a contract

** Contract regarding provision of underground mining services at the Dugald River Mine in Queensland

** YTD, PRN up 23.5%

($1 = 1.5356 Australian dollars)

(Reporting by Nichiket Sunil in Bengaluru)

((Nichiket.Sunil@thomsonreuters.com))