Williams has signed a long-term agreement to produce up to 17,000 barrels per day (bpd) of ethane and ethylene for NOVA Chemicals Corporation. Williams will invest CAD 311 million to expand its two main facilities in Alberta in support of the new agreement. Scheduled to begin operation in the first quarter of 2013, the expansions will allow the company to generate ethane and ethylene from its operations that process off-gas from the Alberta oil sands. Williams will revamp its oil sands off-gas extraction plant near Fort McMurray, Alberta, and build a de-ethanizer at its Redwater natural gas liquids (NGL)/olefins fractionation facility near Edmonton, Alberta. The addition of the new de-ethanizer at Redwater will allow Williams to produce around 10,000 bpd of an ethane/ethylene mix. This will add to its current production of 14,000 bpd of a heavier NGL/olefins mixture that includes propane, propylene, butane, butylenes and condensate. As per the agreement, Williams will deliver the ethane/ethylene mix produced at Redwater into the Joffre Feedstock Pipeline (JFP). NOVA Chemicals will deliver the product via JFP into its Joffre facilities.