Apache today said it had managed a 100% drilling success rate in the North Sea while adding production from three development wells in the region during the second quarter. The Houston-headquartered firm, which also has operations in Canada, Egypt and the US, said the trio had achieved a 30-day average rate of more than 6,000 barrels of oil equivalent (boe) a daily. Drilling has also started on the Storr play in the Beryl area, the company said in its second quarter results announcement, which revealed net losses of $244million (£185million).
Russian oil producer Rosneft said profit slumped in the first quarter as crude prices hit its bottom line
Phillips 66 posted a 61% drop in first-quarter earnings after profit margins for refining and chemicals production shrank.
Exxon Mobil reported a higher-than-expected first-quarter profit by cutting costs to combat the plummeting oil price.
PetroChina, the country's largest oil and gas producer, reported its first ever quarterly loss as oil prices touched near 13-year lows.
ConocoPhillips posted a $1.5billion first-quarter loss, compared with a year-earlier profit, and cut its spending budget for the second time this year as the slump in crude prices sapped its profitability.
Canadian Natural Resources reported an 89% fall in quarterly profit, hurt by weak oil and gas prices.
Seadrill has reported revenue of $959million in its fourth quarter results for 2015.