Tuesday broker round-up

(ShareCast News) - Ithaca Energy: Barclays reiterates underweight with a target price of 70p.Mediclinic: JP Morgan maintains neutral with a 1160p target.Premier Oil: Barclays reiterates overweight with a 100p target.South 32: Jefferies reiterates hold with a 110p target.Mondi: Citigroup keeps at neutral with a target price of 1650p.Amec: Exane BNP Paribas reiterates neutral with a target price of 530p.Hostelworld: Numis stays at buy with a 300p target.BHP Billition: Jefferies upgrades to buy with a target of 1250p.Petra Diamonds: Canaccord reiterates buy with a 165p target.Kaz Minerals: Jefferies stays at hold with a 200p target.Tullow oil: Barclays reiterates overweight, 310p target.Rio Tinto: Jefferies stays at buy with a 2800p target.