PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS |
3.
PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS
Pension Plans
Laclede Gas has non-contributory, defined benefit, trusteed forms of pension plans covering substantially all employees. Effective January1,2009, the Utility modified the calculation of future benefits under Laclede Gas primary plan from a years of service and final average compensation formula to a cash balance formula, which accrues benefits based on a percentage of compensation. Benefits attributable to plan participation prior to January1,2009 will be based on final average compensation at the date of termination of employment and years of service earned at January1,2009. Effective January1,2010, the Utility modified the calculation of future benefits under its Missouri Natural Gas division plan from a career average formula to a cash balance formula, which accrues benefits based on a percentage of compensation and provides interest credits on the balance. Benefits attributable to plan participation prior to January1,2010 will be based on career average compensation earned as a participant prior to January1,2010. Plan assets consist primarily of corporate and U.S. government obligations and equity investments.
Pension costs for the quarters ending March31,2010 and 2009 were $1.6 million and $1.5 million, respectively, including amounts charged to construction. Pension costs for the six months ended March31,2010 and 2009 were $3.2 million and $3.1 million, respectively, including amounts charged to construction.
The net periodic pension costs include the following components:
Three Months Ended
Six Months Ended
March 31,
March 31,
(Thousands)
2010
2009
2010
2009
Service cost benefits earned
during the period
$
2,189
$
1,817
$
4,463
$
5,302
Interest cost on projected
benefit obligation
4,924
5,229
9,881
10,497
Expected return on plan assets
(5,075
)
(5,234
)
(10,107
)
(10,469
)
Amortization of prior service cost
172
259
411
518
Amortization of actuarial loss
2,025
774
4,059
1,548
Sub-total
4,235
2,845
8,707
7,396
Regulatory adjustment
(2,657
)
(1,296
)
(5,550
)
(4,298
)
Net pension cost
$
1,578
$
1,549
$
3,157
$
3,098
Pursuant to the provisions of the Laclede Gas pension plans, pension obligations may be satisfied by lump-sum cash payments. Pursuant to a Missouri Public Service Commission (MoPSC or Commission) Order, lump-sum payments are recognized as settlements (which can result in gains or losses) only if the total of such payments exceeds 100% of the sum of service and interest costs. No lump-sum payments were recognized as settlements during the six months ended March31,2010 and March31,2009.
Pursuant to a MoPSC Order, the return on plan assets is based on the market-related value of plan ass |