Oil Prices Fall on Rising US Inventories, Libyan Output Singapore, 29 Jan (ONA) --- Oil prices slid today, giving up some of last session's gains, as an increase in US crude stockpiles and easing worries over Libyan supplies weighed on prices. Brent crude futures fell 18 cents, or 0.2%, to $77.31 a barrel, while US crude futures declined 15 cents, or 0.2%, at $73.62 a barrel. US crude oil and gasoline stocks rose last week, while distillate inventories fell, ...