Giving preliminary estimates for results ahead of the meeting, Shell said its underlying fourth-quarter earnings on a current cost of supplies basis would be between $1.6 to 1.9 billion, down from $3.26 billion a year ago.

Oil prices fell by another 24% in the fourth quarter, as global supplies continued to outstrip demand, further eroding oil companies’ upstream revenues.

However, BG, which also provided a short trading update on Wednesday ahead of its own shareholder meeting on the takeover deal next week, positively surprised investors by beating its 2015 production target.

“We believe the in-line performance of both companies should be viewed positively prior to theShell shareholder vote,” said analysts at BMO Capital Markets, who rate Shell shares as ‘underperform’.

The companies aim to have cut a combined 10,000 staff and contractor jobs by the end of this year and Shell said on Wednesday it could further cut combined capital investments below the $33 billion targeted for 2016.

Shell shareholders are set to cast their votes on the deal on Jan. 27, followed by BG investors the next day, the final hurdles to be cleared for the deal to proceed, one of the biggest energy sector acquisitions in the past decade.

Norway’s $790 billion sovereign wealth fund, which is the second and fifth-biggest investor in BG and Shell respectively, said on Wednesday it would vote in favor of the merger.

Many of Shell and BG’s big shareholders have voiced support for the deal but a slump in oil prices below $30 a barrel has raised concerns that Shell may be overpaying for the smaller rival.

Shell said on Wednesday it expected the deal to go through within weeks.

“The completion of the BG transaction, which we are expecting in a matter of weeks, will mark the start of a new chapter in Shell, to rejuvenate the company, and improve shareholder returns,”Shell Chief Executive Ben van Beurden said in a statement on Wednesday.

BG, which will report full-year results on Feb. 5, said it expected 2015 production volumes to have hit 704,000 barrels of oil equivalent per day (boepd), above its previous forecast of 680-700,000 boed, due to new fields that have come on stream in Australia, Brazil and Norway.

The news is positive for Shell, which is banking on access to new resource-rich areas, especially in Brazil, to make the BG acquisition worthwhile.

Shell said its asset sales in the past two years had amounted to more than $20 billion, far outstripping its original plan to make $15 billion worth of divestments.

For BG, the fall in oil prices meant it booked a $700 million impairment charge in the fourth quarter related to fields in the North Sea and Tunisia, it said on Wednesday.

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Shell said it expected full-year core earnings of $10.4-10.7 billion which would be below the consensus market forecast of $10.8 billion. It will publish full-year results on Feb. 4.

It maintained its 2016-18 asset sales projection of $30 billion, provided its acquisition of BG goes through, and its 2016 dividend payment forecast of at least $1.88 per share.

Shell ‘A’ shares were down 5.6% at 1027 GMT and BG shares were 2.2% lower, in line with a 3.4% fall of the European oil and gas index.