In trading on Monday, shares of Triangle Petroleum Corp (TPLM) crossed below their last reported book value — defined as common shareholder equity per share — of $4.89, changing hands as low as $4.84 per share. Triangle Petroleum Corp shares are currently trading up about 1.4% on the day. The chart below shows the one year performance of TPLM shares, versus its 50 and 200 day moving averages:

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Triangle Petroleum Corp Moving Averages Chart

Looking at the chart above, TPLM's low point in its 52 week range is $3.10 per share, with $12.48 as the 52 week high point — that compares with a last trade of $5.11.

According to the ETF Finder at ETF Channel, TPLM makes up 1.21% of the SPDR S&P Oil & Gas Exploration & Production ETF ( XOP) which is trading up by about 0.5% on the day Monday.