

2016
Cost or
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
(In millions)
Securities available for sale,
carried at fair value:
Fixed maturities:
Independent exploration and production
$ 1,112
$ 122
$ 27
$ 1,207
Integrated energy
568
63
15
616
Midstream
1,157
146
21
1,282
Oil field services
1,016
35
143
908
Refiners
390
18
5
403
Government owned - energy related
893
204
10
1,087
Natural gas utilities
410
79
3
486
Total fixed maturities
5,546
667
224
5,989
Equity securities:
Integrated energy
30
1
0
31
Midstream
5
1
0
6
Refiners
5
1
0
6
Natural gas utilities
2
0
0
2
Total equity securities
42
3
0
45
Total securities available for sale
5,588
670
224
6,034
Securities held to maturity,
carried at amortized cost:
Fixed maturities:
Integrated energy
223
15
0
238
Government owned - energy related
258
21
0
279
Natural gas utilities
215
25
0
240
Total fixed maturities
696
61
0
757
Total securities held to maturity
696
61
0
757
Total securities available for sale
and held to maturity
$ 6,284
$ 731
$ 224
$ 6,791
60