Monday Evening Links

[Reuters] Violence escalates in east Ukraine ahead of talks

[NYT] Treasury Officials Increase Efforts With Finances of Puerto Rico

[Forbes] Shale oil boom goes bust as expected production dips for first time in years

[BBC] No clear winners or losers in Yemen as conflict rages

[Bloomberg] Brazilian Real Drops as China Import Decline Damps Flow Prospect

[Reuters] Greece denies report that it is preparing for debt default

[FT] Greece prepares for debt default if talks with creditors fail

Bloomberg] Budget Gap in U.S. Widens as Spending Tops Record Revenue

[Reuters/NYT] U.S. Shale Oil Output to Fall in May, First Drop in Four Years-EIA