資産除去債務、為替差損益(△は益)

【期間】
年度資産除去債務為替差損益(△は益)
2011/1223.5億-
2012/1223.8億 +1.4%-
2013/1224.2億 +1.3%-
2014/1224.5億 +1.4%-
2015/1224.8億 +1.4%0.62億
2016/1225.2億 +1.4%31億 大幅増
2017/1225.5億 +1.4%-0.76億 赤転
2018/1225.9億 +1.4%3.28億 黒転
2019/1226.2億 +1.2%1.9億 -42.1%
2020/1226.5億 +1.2%2.64億 +38.9%
2021/1226.8億 +1.1%-0.79億 赤転
2022/1227億 +0.9%-0.34億 赤縮
2023/1220.3億 -25%-0.14億 赤縮