Mumbai, Dec. 22 -- WTI Crude oil futures are up for a second session today, benefitting from supportive equities and sustained bargain buying. Asian equities edged up on Monday, following the broadly positive cues from Wall Street on Friday, boosted by sharp gains in technology shares. Oil also eyed uncertainty on Russia-Ukraine war and WTI Crude oil futures are currently trading at $57.21 per barrel, up 1.20% on the day and approaching one-week high. Oil had firmed up around 1% in last session as well. One key factor at play right now is the falling US oil rig count. The US oil-focused rigs are at a four-year low and this could ensure that oil stayed supported after testing around four-year low few days ago. MCX Crude oil futures are up 0....