By Robb M. Stewart 
 

MELBOURNE--BHP Billiton Ltd. (BHP) has scrapped plans to buy a basket of exploration licenses in the region of its Olympic Dam copper and uranium mine in South Australia after it last month shelved a US$30 billion plan to greatly expand the operation.

Exploration firm Tasman Resources Ltd. (TAS.AU) said Monday that it had received a notice from BHP terminating conditional contracts that would have seen BHP buy five exploration licenses and one license application for the Stuart Shelf region, which hosts the Olympic Dam deposit.

Tasman in mid-June had said BHP had agreed to buy the licenses in a 3 million Australian dollar (US$3.1 million) deal subject to several conditions. It at the time said the land contains several targets that are thought to be deep and relatively high risk and therefore more suited to companies with larger exploration budgets.

BHP last month said it would investigate a less capital-intensive design for an open-pit mine expansion to its existing underground operation at Olympic Dam.

"After further reviewing our completed tenement acquisitions in the Stuart Shelf combined with the recent grant of some additional exploration license applications, the company is satisfied with its existing exploration options in the region and chose not to proceed with the purchase of Tasman's tenements," a BHP spokesman in Melbourne said. "This decision is independent of Olympic Dam's future development path."

Write to Robb M. Stewart at robb.stewart@wsj.com

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