BEIJING (AFX-ASIA) – Liaohe Jinma Oilfield Co Ltd (SZ A 000817) said net profit rose to 169.16 million yuan in the first quarter from 66.16 million a year earlier, largely due to increased prices of crude oil and reduced operating costs. (US$1=8.28 yuan). Earnings-per-share increased 155.91% to 0.154 yuan, while core revenue rose to 390.29…