Danna, one thing I would always ask any company who has offered to lease your minerals is: Are you planning on drilling a well? Or are you planning to sell my lease to a company who will drill a well?
I do not find Bellomy Exploration listed as an Operator on the Texas Railroad Commission Website. This tells me they have never filed a drilling permit or operated any existing wells in the State. You will never get your best deal when dealing with a middleman, being a company who is flipping leases for profit. Now there are some major E&P companies who use independent land brokerage firms to acquire leases on their behalf, but most times these brokerage firms will be acquiring these leases in the name of the E&P company as Lessee.
IF you only own a partial interest in a tract of land please be aware that once you have leased to a company who has no plans of drilling it is then up to that company to make a deal with the company who is planning on drilling a well to include your leased interests in their well. If they cannot get the drilling company to accept your lease and if the other company does drill a well on the land in which you own it is possible you will never be paid any royalties from the production from the other companies well. All responsibility to drill you a well is on the Lessee of your lease.
There are protections in place for the accounting of royalties from production and an option to participate in your share of drilling expenses for those who have an unleased interest in a tract of land; But once you sign your mineral rights over to another company in an oil and gas lease this protection is gone.