Steven Croft steered the final ball from Ryan Sidebottom to deep point for two to seal a stalemate that, even at this early stage of the competition, hardly helped either side.
Sidebottom had celebrated the result as a win though, after he snuck a point for his team despite Lancashire reducing the ask to five runs from the last four balls.
Phil Jaques' unbeaten 66 had helped Yorkshire set up a target score of 152 for six, but that looked well within Lancashire's sight after one Jack Brooks over cost 24. But the visitors somehow lost their way, despite Croft's 42 from 28 balls, as they were left with a single win from four starts.
Nottinghamshire knocked Derbyshire off the top of the North Group with a six-wicket win at Derby. After Samit Patel took three for 16 the Outlaws chased down 115 for nine with 15 balls in hand. England opener Michael Lumb top-scored with 49 from 41 balls while James Taylor added 34.
Surrey stayed top of the South Group as they beat closest rivals Middlesex by 15 runs. Left-arm spinner Ravi Patel took four for 18, in just his second game in the competition, but it was not enough as his batsmen failed to chase down 147 for nine.
Craig Kieswetter led an impressive Somerset chase as his unbeaten 89 from 55 balls ensured they overhauled Gloucestershire's 190 for six with a ball remaining.
Leicestershire grabbed their first win on the back of Joe Burns' unbeaten 81 from 52 balls against Durham. The Australian plundered six fours and four sixes as the Foxes posted 176 for five. Anthony Ireland then took four for 22 to ensure Durham fell short.
Mohammad Azharullah also grabbed four wickets as Northamptonshire made it two wins from as many starts against Warwickshire. Warwickshire came up 27 runs short of the Steelbacks' 161 for two.
Essex beat Kent by 47 runs after Reece Topley and Graham Napier both grabbed three wickets apiece while defending champions Hampshire beat Sussex by five wickets. Neil McKenzie hit a brilliant 71 not out from 50 balls to steer Hampshire past the Sharks' 145 for six in the final over.