DUBAI, Dec 17 (Reuters) - Here are some factors that may affect Middle East stock markets on Wednesday. Reuters has not verified the press reports and does not vouch of their accuracy.INTERNATIONAL/REGIONAL* GLOBAL MARKETS-Investors take cover amid Russia crisis, oil slide MKTS/GLOB* Brent ends below $60, U.S. crude settles up, then dips O/R* MIDEAST STOCKS-Oil&aposs fall below $60 sends shockwave