The spoils are shared here at Oakwell in the South Yorkshire derby.
Our visitors from Sheffield took the lead early in the first half against the run of play when Adthe Nuhiu tucked home a hotly-disputed penalty kick.
The Reds responded a few minutes later with Oli McBurnie's solo run and finish levelling the game up.
Caretaker coach Paul Harsley made two changes to the side that lost 1-0 at QPR last weekend, with McBurnie making his full debut in place of Kieffer Moore and Lloyd Isgrove returning from injury on the wing with George Moncur on the bench.
It was a frantic, end-to-end start to the match with Wednesday forcing a couple of corners that came to nothing and Isgrove proving a real handful for Morgan Fox.
Tom Bradshaw's header forced Joe Wildsmith into a fine save on 15 minutes, before just two minutes later taking the lead when Nuhiu sent Nick Townsend the wrong way from the spot.
It was a dubious award of the penalty kick, with the 'upended' Lucas Joao seemingly falling over well after any initial contact with Andy Yiadom.
But just four minutes later and the Reds hit back.
It was a splendid solo run by McBurnie, who weaved played a give-and-go with Gary Gardner, then proceeded to weave his way into the box and unleashed an unstoppable finish into the far corner with his left peg for 1-1.
Oakwell went wild!
It could have been 2-1 on 33 minutes when Bradshaw's volleyed effort first time from Isgrove's cross was superbly tipped over the bar by Wildsmith.
It had been an attacking first half full of spirit by the Reds but still level at the break.
HALF TIME: Barnsley 1-1 Wednesday
It resumed as it had started when on 50 minutes Hammill's perfect cross was headed over the bar by McBurnie just six yards out.
Then came another bizarre decision when Hammill jinked into the box and David Jones seemingly body-checked him, but referee Lee Probert once again ruled in Wednesday's favour, much to the protestation of Reds captain, Andy Yiadom.
McBurnie went close again on the hour mark when his powerful effort from the edge of the box was tipped wide of the post by Wildsmith.
Connor Mahoney replaced the tiring Isgrove on 61 minutes.
Then, Wednesday's best chance, as Ross Wallace cut in on his favoured left foot from just outside the box and to the right, and he curled a great shot just inches wide of the far post.
It was scrappy from then on, with McBurnie replaced by Kieffer Moore on 72 minutes.
The big man, Moore was soon fouled by Jones and the Wednesday man was down for a few minutes with a bloodied nose, and had to be replaced.
Joey Pelupessy fired a vicious shot just wide as the visitors came close late on.
But the game petered out and it was all-square on derby day.
FULL TIME: Barnsley 1-1 Wednesday
Reds: Townsend, Yiadom, Mills, Lindsay, Pinillos, Hammill, Gardner, Williams, Isgrove (Mahoney 61), McBurnie (Moore 73), Bradshaw.
Att: 16,858 (4,500 Owls)