| Energy bar ingredient | 21 |
| Energy bar ingredients | 22 |
| Energy bits | 11 |
| Energy bloc | 11 |
| Energy booster | 14 |
| Energy boss | 11 |
| Energy burglars? | 16 |
| Energy bursting at the seams | 28 |
| Energy cartel | 13 |
| Energy cartel letters | 21 |
| Energy cartel since 1960, briefly | 33 |
| Energy cartel since 1960: abbr. | 31 |
| Energy cartel, in brief | 23 |
| Energy choice | 13 |
| Energy company founder Halliburton | 34 |
| Energy company in the Fortune 100 | 33 |
| Energy company known for, well, everything but providing energy | 63 |
| Energy company that filed for bankruptcy in 2001 | 48 |
| Energy company whose bankrupcy took down the Arthur Andersen accounting firm | 76 |
| Energy conservation project? | 28 |
| Energy converter | 16 |
| Energy converters | 17 |
| Energy converters of a sort | 27 |
| Energy drink additive | 21 |
| Energy drink brand | 18 |
| Energy drink from Wet Planet Beverages | 38 |
| Energy drink maker | 18 |
| Energy drink with a bovine logo | 31 |
| Energy entrepreneur/art dealer | 30 |
| Energy expressed in volts: Abbr. | 32 |
| Energy field | 12 |
| Energy Field nine | 17 |
| Energy fields | 13 |
| Energy firm in 2001 headlines | 29 |
| Energy for a marathon runner? | 29 |
| Energy for a new effort | 23 |
| Energy for a renewed effort | 27 |
| Energy for Fulton | 17 |
| Energy fragments | 16 |
| Energy giant that filed for bankruptcy in 2001 | 46 |
| Energy giant that went bankrupt in 2001 | 39 |
| Energy in alternative medicine | 30 |
| Energy increase authorization? | 30 |
| Energy inits. in the South | 26 |
| Energy lack | 11 |
| Energy meas. | 12 |
| Energy meas. for cooling systems | 32 |
| Energy measurements | 19 |
| Energy mogul | 12 |
| Energy of a kind | 16 |
| Energy of a sort | 16 |
| Energy or system | 16 |
| Energy output units | 19 |
| Energy particle | 15 |
| Energy personified | 18 |
| Energy plus | 11 |
| Energy point, in Yoga | 21 |
| Energy Policy Act of 2005 topic: Abbr. | 38 |
| Energy problem | 14 |
| Energy producer | 15 |
| Energy producers | 16 |
| Energy provider, in slang | 25 |
| Energy providers | 16 |
| Energy qtys. | 12 |
| Energy quantum | 14 |
| Energy Reorg. Act of 1974 creation | 34 |
| Energy required to lift a small apple | 37 |
| Energy saver | 12 |
| Energy saving bulb | 18 |
| Energy secretary under Clinton | 30 |
| Energy shield | 13 |
| Energy shortage | 15 |
| Energy shortage? | 16 |
| Energy source | 13 |
| Energy source (abbr.) | 21 |
| Energy source for engines | 25 |
| Energy source in a small package | 33 |
| Energy source in drums | 22 |
| Energy source in old engines | 28 |
| Energy source in the news | 25 |
| Energy source of sorts | 22 |
| Energy source since 1942 | 24 |
| Energy source that may be 2 trillion times as bright as the sun | 63 |
| Energy source, briefly | 22 |
| Energy source, for short | 24 |
| Energy source: Abbr. | 20 |
| Energy sources | 14 |
| Energy sources? | 15 |
| Energy Star label bearer | 24 |
| Energy Star mark on a product, e.g. | 35 |
| Energy Star org. | 16 |
| Energy Star program creator | 27 |
| Energy Star program org. | 24 |
| ENERGY STAR promoter, briefly | 29 |
| Energy storage container? | 25 |
| Energy storage molecule, briefly | 32 |
| Energy to advance | 17 |
| Energy type | 11 |
| Energy unit | 11 |
| Energy unit in physics | 22 |