At around $37 a barrel, crude prices are well below the $60 firms such as Total, Statoil and BP need to balance their books, a level that has already been sharply reduced over the past 18 months.
International oil companies are once again being forced to cut spending, sell assets, shed jobs and delay projects as the oil slump shows no sign of recovery.
U.S. producers Chevron and ConocoPhillips have published plans to slash their 2016 budgets by a quarter. Royal Dutch Shell has also announced a further $5 billion in spending cuts if its planned takeover of BG Group goes ahead.
Global oil and gas investments are expected to fall to their lowest in six years in 2016 to $522 billion, following a 22 percent fall to $595 billion in 2015, according to the Oslo-based consultancy Rystad Energy.
"This will be the first time since the 1986 oil price downturn that we see two consecutive years of a decline in investments," Bjoernar Tonhaugen, vice president of oil and gas markets at Rystad Energy, told Reuters.
The activities that survive will be those that offer the best returns.