Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside the mastoid process.
Extract: Government spending has increased substantially in recent years. Consequently, the breakeven oil price rose to $106 a barrel in 2014 from $69 a barrel in 2010. As a result, with the large decline in oil prices, the fiscal deficit has increased sharply and is likely to remain high over the medium-term.
Some shale oil wells may have a break even point of $40 a barrel over their production life despite the higher drilling and fracking costs. However, many sources put the average break even point for a fracked horizontal well above $60 a barrel with the higher-cost wells coming in at over $90 a barrel. The Bottom Line.