December 31, | |||||||
2013 | 2012 | ||||||
Net deferred income tax liability, beginning of year | $ | (3,696 | ) | $ | (214 | ) | |
Southern Union acquisition | — | (1,428 | ) | ||||
Sunoco acquisition | — | (1,989 | ) | ||||
SUGS Contribution to Regency | (115 | ) | — | ||||
Tax provision (including discontinued operations) | (124 | ) | (62 | ) | |||
Other | (49 | ) | (3 | ) | |||
Net deferred income tax liability | $ | (3,984 | ) | $ | (3,696 | ) |