Ag Awards
Oil Mania Slot is currently available only in free play mode in your country.

Oil Mania is an entertaining 25-payline video slot operating on the NextGen Gaming software platform. The wild card is the Oil symbol and the Oil Tycoon symbol is the game’s scatter. Players can try the game for free right here on this page or visit any of the featured NextGen Gaming casinos to play the game for real money.

To begin drilling for oil, players should adjust their bet first. The coin value ranges from 0.01 to 2, which can be modified by clicking the arrows beneath the coin symbol, which is the “Max Bet” button used for placing the highest bet. Pushing the arrows below the “Lines” symbol selects the number of active paylines. The “Lines” symbol, however, selects all lines. The green “Spin” button featuring a triangle starts the game and the “Au­top­lay­” button to its left spins the reels multiple times uninterrupted.

Pushing the heart and clubs Gamble button allows players to increase their winnings. If they guess the colour of the face-down card correctly, the sum is doubled. Moreover, guessing the suit quadruples the amount. Wrong guesses, however, result in the loss of the amount. To end the feature themselves, players can click on the “Take Win” button and save their winnings.

The Oil Tycoon symbol appears only on reels 2, 3 and 4, triggering the Upwild Feature. 3 Free Games are thus awarded with the Wild Oil gushing from the earth. Wild Oil grows up 1 position with each Free Game. The Feature is reactivated whenever an additional Oil Tycoon lands on the reels.

The jackpot of 2500 credits will be awarded when 5 Mechanics appear on an active payline.

Game Play

Coin Arrows: Adjust the bet.
Coins/Max Bet: Wager the maximum sum.
Line Arrows: Select the number of paylines.
Max Lines: Select the maximum number of paylines.
Spin/Triangle: Spin the reels.
Autoplay: Spin the reels multiple times successively.
Gamble : Start the gamble round.
Take Win: Save the winnings.

Play game
Software NextGen Gaming
Slot Type Video slots
RTP 95.5%
Special feature Wild Scatter Free Spins
Slot details
More slot details More details
  • Software

    NextGen Gaming
  • Slot Type

  • Paylines

  • Reels

  • Min Coins Per Line

  • Max Coins Per Line

  • Min Coins Size

  • Max Coins Size

  • Jackpot

  • RTP

  • Bonus Game

  • Progressive

  • Wild Symbol

  • Scatter Symbol

  • Autoplay Option

  • Multiplier

  • Free Spins

Suggest an edit

Oil Mania Slot Reviews by Players


Write a review
hajnrih 1378 reviews
• Macedonia
Reviewed on August 16, 2015


Oil Mania is a really slow, slow slot game coming from NextGen gaming. When you start playing this game the background music will make you fall asleep. It reminds me of some long hot horseback ride in the western prairie. The theme of the game is set in the west in the everlasting search for oil. All of the symbols here remind us of that, the oil man, oil rig, money case, oil plans.

This game has 25 paylines and 5 reels and is somewhat different from the rest of the NextGen slots. The paytable is petty descent and the highest paying symbol awards a win of 2500 coins or 100 x bet, and the second highest symbol awards a win of 1000 coins. This is one of the rare games where there is no scatter symbol only a bonus symbol. I think you can notice that the usual 2 x bet win for 2 scatters are missing in the base play so you can drop in balance a lot faster than in other NextGen slots.

There is only one bonus feature in this game and it’s not a free spins or a cash bonus, but a wilds bonus. This is another detail that separates this game from the rest. Here the bonus symbol lands on reels 2, 3 and 4 only and when he does you get 3 free spins with the upwild feature. For every spin a wild is added from the bottom to the end so at the end of the third spin you have an entire reel of wilds. If another bonus symbol lands on the reels then the number of spins is set back to 3 and a new upwild feature begins from the new wild.


In theory you can have some great wins here but you need 2-3 bonus symbols on the reels. This is almost impossible to get and I have never had even 2 symbols at the same time. There are other better slots you can play which pay better.
Adebisi213 447 reviews
Reviewed on January 24, 2015


Oil Mania is a video slot from NextGen gaming which has been released some time ago now. It’s a rather basic slot with not too many features to look forward to. The concept is quite simple and easy to comprehend even for beginners. No complicated gameplay with Oil Mania.

The slot Oil Mania contains 5-reels, 3-rows and 25-paylines. Theme is based on the environment of an oil refinery. The background of the game and symbols reflect the theme accurately. But what does Oil Mania have to offer though?

I played this game on 50 cent bets. During base game my wins were pretty awful. I remember losing 20 euros in the space of 5 minutes. No good combinations despite my efforts. It’s almost impossible not to get bored while playing this game.

The only good thing it has to offer is the Upwild Feature. Every time the Bonus symbol drops, then you get three free spins awarded. The bonus symbol only appears on reels 2, 3 and 4 though. If the bonus symbol drops, then you get awarded 3 free spins.

The lowest symbol of the reels where the bonus symbol appeared will then turn into a wild. After each spin the wild expands upwards. After my second feature I did manage to get a 5oak of the highest paying symbol (Oil man) paying 100x bet.

The only way I can see this game paying out big would be if the bonus symbols dropped all three at the same time. Then you will have 3 reels completely wild for at least one spin. If you manage the best paying symbol lining up well, then it could definitely turn into a nice payout.

Also good to know is that the feature in question can be re-triggered during the free spins if another bonus symbol appears. Although my session wasn’t bad, I did find the game a little bit too dull and not having enough features.


Lack of real potential unless you get 3 bonus symbols at the same time. Game gets boring after a while of playing. I would recommend other games from NextGen instead.
yapro 790 reviews
• Belarus
Reviewed on June 25, 2014


Oil mania video slot one more great game in portfolio of nextgent software and i will never stop saying that it is great company with great and interesting game. This one of the least favorite game to me, because generally it is low variance slot but also very great looking slot.

At this game we have 25 paylines and also in base game there is no any wilds, best 5 of a kind pays x 100 total bet, and it is looks not so interesting right? Feature triggered very easy when on one of the 2 3 or 4 reels appear bonus symbol, it trigger 3 free spins during which wild will be grow from bottom to top till cover all reel. If during this free spins bonus symbol appear on other reel, you will get 3 more free spins so it is possible to get 3 stacked wilds on middle reels, but even so big win on this game is hard to imagine. I play this game sometimes at skill on net casino i spent couple of hours on this game, but never had wins more than 100 x total bet, but also this game is almost never move your balance down most time it is keeping on one level , so at least you will get a lot of playtime. Also i was never able to get wilds on all 3 middle reels in one time, looks like it is not so easy, even taking fact that payout will not be big anyway. Generally this is good looking game, but too boring for me i like high wins potential and high variance here is impossible to wait something great will happen.

Like with every low variance game this one can be good to clear bonus or just have a lot of playtime. Game almost did not have streaks and balance usually stuck on one level and very slowly go down. Most likely i will not play this game again if only i will need to met wagering requirements.

Why are you reporting this review?

150 characters left for pros 150 characters left for cons

Time to Check your email!

You are recognised as Casino Representative. We sent an email to with registration link, please click that link in order to complete the registration.

Oil Mania Slot Winning screenshots

Been lucky lately? Share your winnings.

Sign up for +100 No Deposit Spins!

This offer is not applicable to residents of Great Britain.

By subscribing you are certifying that you have reviewed and accepted our updated Privacy and Cookie Policy