$500-$1000 per net acre seems to be the going rate in Colorado. 3 year term, 2 year extension. Around 20% royalty. The extension payment should be the same as the original bonus. The more contiguous acreage, the better the rock, the higher the bonus and royalty.
The link you provided is for a land broker. Things are pretty tight for land brokers at all times, so I doubt they’re leasing on spec and trying to sell it later. They’re almost certainly leasing for a much larger O&G company. It’s an old trick. If the landowners find out they’re taking the lease for a company like Chevron, they’re going to ask for more money.
I don’t think you have much leverage, but I’d compare notes with your neighbors. Royalty, bonus, and production costs are all things neighbors should share and discuss.
I’d hire a Kansas landman for a flat rate to review your lease. I doubt attorneys in your area would have much knowledge of a lease form. Be very careful with hourly rates. I’ve been burned before. Guy didn’t know shit, and spent 2 weeks researching a bullshit opinion.
Just make sure there are lease provisions that requires them to drill. I’d ask for a separate lease tract provision (SLT). It’s cleaner than pughs. I doubt you want to track production at different depths. If they drill, you can monitor production on the state oil and gas site. They should have administrative people that can walk you through it. Basically with SLT, the spacing unit for each well functions as its own lease. If a well doesn’t produce for 60 days to a year, it releases that acreage and you can lease it again.
And if they want put anything on your property that isn’t a wellhead, you need to compensated for it. If you can’t use part of your property because of their operations, you need to get paid.
Be patient. If they’re wildcatting it might take them the full 5 years to drill.
Good luck.