Record-breaking world oil prices mean prospects are bright for Halliburton's oil field services business, which had profit margins of 14.2% in the three months to June 2004, up 1% on year-earlier.

BBC: NEWS | Business | Halliburton hopes for better days

This has driven down demand and pricing for pressure pumping services like fracking that are used to extract gas from shale rock formations, severely impacting margins of most large oil field firms including Baker Hughes.

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The once-crowded leasing field has seen 80% of companies go out of business, leaving Siam Panich able to improve its margins with little competition.

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