(Reuters) – Top Bakken producer Continental Resources Inc nearly doubled its 2019 outlook for free cash flow to $1 billion on Tuesday, citing an uptick in oil prices.

The increase comes as investors, frustrated with more than four years of low returns from oil producers, have pushed the companies to shore up capital for shareholder returns like dividends and buybacks, rather than spending to drill more and boost production and revenue numbers.

“We are now through a quarter of the year, and with the rise in oil prices, we are tracking toward $1 billion of free cash flow for 2019,” Chief Financial Officer John Hart said on a post-earnings conference call with analysts.

The company said the incremental level of cash flow would help it