IDOX, the software services firm focused on the UK public sector, said its McLaren Software engineering information unit has bagged a contract with Occidental Petroleum.McLaren is to supply its McLaren Enterprise application software suite and related services to OXY, a subsidiary of US oil and gas giant, Occidental Petroleum . The contract in the first year is worth $2.0m, relatively small beer to IDOX, which is expected by the market to notch up revenues of £53.25m in the year to October 31st 2012.The shares were down a half-penny in mid-morning trading at 32p. JH