Tullow Oil in demand after refinancing plans A look at the major movers on the London market on Thursday oil Tullow Oil PLC (LON:TLW) is one of the day's risers after it unveiled a refinancing. The exploration and production group has begun an offer of $1.8bn worth of senior secured notes due in 2026 and received commitments for a $500mln revolving credit facility and a $100mln letter of credit facility. The proceeds with be used to push out the timeframe for its debt obligations, including redeeming $650mln worth of senior notes due in 2022 and repaying $300mln of convertible bonds due this July.