Dana Petroleum took a £45 million write down after its shock exit from the Platypus development in the North Sea.
Logistics firm Peterson has said it is “encouraged” with activity picking up and the business eyeing a return to profits in 2021.
Repsol Sinopec Resources UK took losses of nearly three quarters of a billion dollars during an “extraordinary” and “challenging” 2020.
Bristow has narrowed its losses substantially in the first full year since emerging from Chapter 11 bankruptcy.
SSE maintained healthy profits in 2020, despite the impact of the Covid-19 pandemic, racking up proceeds from assets sales of nearly £2billion.
Hurricane Energy has sank to losses of £440million, underscoring the troubles of the west of Shetland operator.
Royal Boskalis Westminster said it finished 2020 in a “very solid financial position” despite a “challenging and turbulent” 12 months.
Bosses at TechnipFMC are confident the energy services giant is “well-positioned” to benefit from the “improved market outlook” in the coming months.
Vattenfall stayed comfortably in the black last year despite “an extreme and unusual” 12 months for “several reasons other than the pandemic”.
Halliburton’s chief executive has praised “swift and decisive cost actions” after the firm delivered “strong margins and cash flow” at the back end of last year.