REGULATORY MATTERS

As explained in Note 1, Summary of Significant Accounting Policies, Laclede Gas and Alagasco account for regulated operations in accordance with FASB ASC Topic 980, “Regulated Operations.” The following regulatory assets and regulatory liabilities, including purchased gas adjustments, were reflected in the balance sheets of the Company and the Utilities as of June 30, 2017, September 30, 2016 and June 30, 2016.



	June 30,		September 30,		June 30,
Spire	2017		2016		2016
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	41.7	$	27.0	$	26.9
Unamortized purchased gas adjustments	73.9		49.7		5.4
Other	29.0		17.2		10.6
Total Regulatory Assets (current)	144.6		93.9		42.9
Non-current:
Future income taxes due from customers	166.6		151.3		146.4
Pension and postretirement benefit costs	453.4		487.9		434.4
Cost of removal	135.4		130.6		81.2
Unamortized purchased gas adjustments	13.9		12.6		14.7
Energy efficiency	27.8		25.5		24.4
Other	43.4		30.1		29.6
Total Regulatory Assets (non-current)	840.5		838.0		730.7
Total Regulatory Assets	$	985.1	$	931.9	$	773.6
Regulatory Liabilities:
Current:
Rate Stabilization and Equalization (RSE) adjustment	$	1.2	$	7.5	$	2.9
Unbilled service margin	6.0		5.9		6.4
Refundable negative salvage	8.2		9.3		9.3
Unamortized purchased gas adjustments	1.0		1.7		—
Other	9.5		6.2		3.8
Total Regulatory Liabilities (current)	25.9		30.6		22.4
Non-current:
Pension and postretirement benefit costs	27.0		28.9		27.2
Refundable negative salvage	4.1		9.4		9.3
Accrued cost of removal	74.6		74.8		55.4
Other	34.1		17.6		13.8
Total Regulatory Liabilities (non-current)	139.8		130.7		105.7
Total Regulatory Liabilities	$	165.7	$	161.3	$	128.1



	June 30,		September 30,		June 30,
Laclede Gas	2017		2016		2016
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	34.9	$	20.2	$	20.2
Unamortized purchased gas adjustments	29.0		43.1		0.6
Other	3.3		3.7		3.5
Total Regulatory Assets (current)	67.2		67.0		24.3
Non-current:
Future income taxes due from customers	166.6		151.3		146.4
Pension and postretirement benefit costs	352.3		375.7		352.1
Unamortized purchased gas adjustments	13.9		12.6		14.7
Energy efficiency	27.8		25.5		24.4
Other	22.8		24.7		25.0
Total Regulatory Assets (non-current)	583.4		589.8		562.6
Total Regulatory Assets	$	650.6	$	656.8	$	586.9
Regulatory Liabilities:
Current:
Other	$	2.7	$	1.3	$	1.3
Total Regulatory Liabilities (current)	2.7		1.3		1.3
Non-current:
Accrued cost of removal	54.8		55.1		55.4
Other	28.8		12.2		10.3
Total Regulatory Liabilities (non-current)	83.6		67.3		65.7
Total Regulatory Liabilities	$	86.3	$	68.6	$	67.0



	June 30,		September 30,		June 30,
Alagasco	2017		2016		2016
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	6.8	$	6.8	$	6.7
Unamortized purchased gas adjustments	44.9		5.6		4.8
Other	10.5		8.1		7.1
Total Regulatory Assets (current)	62.2		20.5		18.6
Non-current:
Pension and postretirement benefit costs	92.2		98.9		82.3
Cost of removal	135.4		130.6		81.2
Other	1.1		1.2		4.0
Total Regulatory Assets (non-current)	228.7		230.7		167.5
Total Regulatory Assets	$	290.9	$	251.2	$	186.1
Regulatory Liabilities:
Current:
RSE adjustment	$	1.2	$	5.0	$	2.9
Unbilled service margin	6.0		5.9		6.4
Refundable negative salvage	8.2		9.3		9.3
Other	2.4		2.5		2.5
Total Regulatory Liabilities (current)	17.8		22.7		21.1
Non-current:
Pension and postretirement benefit costs	27.0		28.9		27.2
Refundable negative salvage	4.1		9.4		9.3
Other	3.3		3.4		3.5
Total Regulatory Liabilities (non-current)	34.4		41.7		40.0
Total Regulatory Liabilities	$	52.2	$	64.4	$	61.1

A portion of the Company’s and Laclede Gas’ regulatory assets are not earning a return, as shown in the table below:



	Spire						Laclede Gas
	June 30,		September 30,		June 30,		June 30,		September 30,		June 30,
	2017		2016		2016		2017		2016		2016
Future income taxes due from customers	$	166.6	$	151.3	$	146.4	$	166.6	$	151.3	$	146.4
Pension and postretirement benefit costs	231.0		240.6		203.8		231.0		240.6		203.8
Other	11.4		12.9		13.2		11.4		12.9		13.2
Total Regulatory Assets Not Earning a Return	$	409.0	$	404.8	$	363.4	$	409.0	$	404.8	$	363.4

Like all the Company’s regulatory assets, these regulatory assets are expected to be recovered from customers in future rates. The recovery period for the future income taxes due from customers and pension and postretirement benefit costs could be as long as 20 years, based on current Internal Revenue Service guidelines and average remaining service life of active participants, respectively. The other items not earning a return are expected to be recovered over a period not to exceed 15 years, consistent with precedent set by the MoPSC. Alagasco does not have any regulatory assets that are not earning a return.