It last stood at $1.3048, well off a 15-month trough around $1.2858 plumbed last week.

Against the yen, the greenback fetched 101.41, holding off a seven-week trough of 101.06 plumbed last Thursday.

Crude prices have more than doubled since the lows near $30 a barrel plumbed last winter, on hopes for an economic recovery.

Against the yen, the dollar slipped 0.1 percent to 83.13 yen JPY=, not far from a one-week low near 83.00 plumbed last Friday.

"I mean, I heard that Murphy told you she was a couple bubbles off plumb last night, but there's more than that."

The dollar shed 0.1 percent against the yen to 85.39 yen JPY=, slipping back toward a 15-year low of 84.72 yen plumbed last week.

Halliburton shares rose 1.6 percent to $47.59 in Monday afternoon trading, double the level they plumbed last June due to Macondo liability concerns.