* Trade optimism boosts crude oil prices on Friday. * Baker Hughes reports the largest weekly decline in rig count in nearly two years, so with a supply decline and demand rise will drive oil prices higher * active oil rigs decreased to 852 this week from 873 to post its largest decline since February of 2016 -A downward trend is supported by the 200 EMA around $51 -We can expect the pair to test the 800 EMA at $59