On 5 March 2014, the High Court held, by majority, that Woodside Energy Ltd and other gas suppliers (Sellers) did not breach their obligation to use 'reasonable endeavours' to make a certain quantity of gas available to Electricity Generation Corporation trading as Verve Energy (Buyer) under a long-term Gas Sale Agreement (GSA) (Electricity Generation Corporation v Woodside Energy Ltd; Woodside Energy Ltd v Electricity Generation Corporation  HCA 7).
While this judgment essentially construes the specific clauses of the GSA, it is instructive to observe the High Court's approach to construing 'reasonable endeavours' clauses, including its general observations that:
- a reasonable endeavours obligation is not absolute or unconditional
- the nature and extent of such an obligation is necessarily conditioned by what is reasonable in the circumstances, including business considerations
- some contracts contain their own internal standard of what is reasonable.
The Sellers had an obligation to supply up to the maximum daily quantity of gas (MDQ) nominated by the Buyer pursuant to the GSA. The Buyer was also entitled to seek an additional amount of gas in excess of the MDQ, defined as "the supplemental maximum daily quantity" (SMDQ) (clause 3.3 (a)). The Sellers were required to use reasonable endeavours to make the SMDQ available. In determining whether they were 'able' to make the SMDQ available, clause 3.3 (b) provided that the Sellers may take into account "all relevant commercial, economic and operational matters...".
In June 2008, an explosion occurred at gas production facilities on Varanus Island, which caused a temporary reduction in the supply of natural gas. As a consequence, the Sellers found themselves with an increased demand for gas from other electricity generators.
After the explosion, the Buyer sought and the Sellers refused to supply SMDQ. However, the Sellers offered to supply additional gas to the Buyer at a price that was higher than the GSA price for SMDQ. Under protest, the Buyer entered into short term agreements for the supply of additional gas.
The Buyer brought an action in the Supreme Court of Western Australia alleging that, among other things, the Sellers had breached their obligations to use reasonable endeavours to supply SMDQ. At the centre of the dispute was the correct construction of the Sellers' delivery obligations under the GSA and specifically the inter-relationship between clauses 3.3(a) and (b).
The trial judge found that the Sellers had not breached their obligations to use reasonable endeavours and that 'commercial matters', which the Sellers were entitled to take into account under clause 3.3 (b), included the sale of gas to other customers and the profitability of such sales compared with the profitability of supplying SMDQ under the GSA. The Buyer appealed the trial judge's decision.
The Court of Appeal's Decision
The Court of Appeal found that the trial judge had erred in the construction of the reasonable endeavours clause and that the word 'able' referred to the Sellers' capability or capacity to supply the gas. The increase in gas prices did not absolve the Sellers of their reasonable endeavours obligations.
The High Court's Decision
The High Court overturned the Court of Appeal's decision and reaffirmed the objective approach to be adopted in determining the rights and liabilities of parties to a contract, noting that "it will require consideration of the language used by the parties, the surrounding circumstances known to them and the commercial purpose or objects to be secured by the contract". The High Court confirmed that the GSA should be given a businesslike interpretation.
The majority of the High Court found that the reasonable endeavours clause did not oblige the Sellers to supply SMDQ to the Buyer when the explosion on Varanus Island "occasioned business conditions leading to conflict between the Sellers' business interests and [the Buyer's] interests in obtaining nominated SMDQ at the tranche 3 price".
In reaching that conclusion, the High Court considered:
- The purpose and objects of the GSA .
- The language of the reasonable endeavours clause, which imposed a qualified obligation on the Sellers to supply the SMDQ, in contrast to the language of clause 3.2, which imposed an unconditional obligation on the Sellers to supply MDQ.
- Clause 3.3(b), which provided an "internal standard of reasonableness by which the obligation to use reasonable endeavours to supply SMDQ can be measured". The internal standard referred to "all relevant commercial, economic and operational matters" and included matters affecting the Sellers' business interests so that the relevant obligation to supply SMDQ was qualified, in part, by those commercial and economic considerations.
The majority concluded that the effect of the 'internal standard clause' was that the Sellers were not obliged to forego, or sacrifice, their business interests when using reasonable endeavours to make the SMDQ available for delivery.
In a dissenting judgment, Justice Gageler agreed with the approach of the Court of Appeal. His Honour was unable to see how reasonable commercial parties could have intended to give the Sellers discretion not to make gas available for delivery up to SMDQ "merely because market circumstances present an opportunity for the sellers to demand a substantially higher price for that gas...".
His Honour accepted that the understandable desire of the Sellers to maximise profits might be described as a 'commercial' or 'economic' matter. However, this desire could not be relevant to whether the Sellers were 'able' to supply SMDQ "because it would not bear objectively on [the Sellers'] ability or capacity to make gas nominated by the Buyer available...".
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