| 
					 December 31,  | 
			|||
| 
					 2013  | 
				
					 2012  | 
			||
| 
					 Finished goods inventory at average cost:  | 
				|||
| 
					 Energy carbon steel tubular products  | 
				
					 $ 362,449  | 
				
					 $ 387,609  | 
			|
| 
					 Valves, fittings, flanges and all other products  | 
				763,119 | 752,630 | |
| 1,125,568 | 1,140,239 | ||
| 
					 Less: Excess of average cost over LIFO cost (LIFO reserve)  | 
				(130,802) | (150,982) | |
| 
					 Less: Other inventory reserves  | 
				(23,199) | (19,029) | |
| 
					 $ 971,567  | 
				
					 $ 970,228  | 
			||