First Quarter, 2012 Mine Safety Disclosures

Mine or Operating Name/MSHA Identification Number

Contractor ID

Section 104 S&S Citations (#)

Section 104(b) Orders (#)

Section 104(d) Citations and Orders (#)

Section 110(b)(2) Violations (#)

Section 107(a) Orders (#)

Total Dollar Value of MSHA Assessments Proposed ($)

Total Number of Mining Related Fatalities (#)

Received Notice of Pattern Violations Under Section 104(e) (yes/no)

Received Notice of Potential to Have Pattern Under Section 104(e) (yes/no)

Legal Actions Pending as of Last Day of Period (#)

Legal Actions Initiated During Period (#)

Legal Actions Resolved During Period (#)

Bear Run, 1202422

Z8T

26,679

1

1

El Segundo, 2902257

Z620

1

Four Corners, 0801117

Z8T

1

Lee Ranch, 2901879

Z8T

1

Republic Energy, 4609054

Z8T

1

Twilight, 4608645

Z8T

1

Total

26,679

3

4