Aug 19 (Reuters) - Santos Ltd STO.AX :
* Santos 2016 half-year results
* Upstream production cost guidance has been reduced to US$9-10/boe for 2016
* "Our goal is to be free cash flow breakeven at between US$35 to US$40 per
barrel on a portfolio basis", said chief executive officer Kevin Gallagher
* 2016 capital expenditure guidance (excluding capitalised interest) US$750
million
* Sees 2016 sales guidance at 76-83 mmboe
* Source text for Eikon ID:nASXBZd1G