Tract arithmetic
Apply a stated fraction to stated acreage, with your reference note beside the equation.
OGML / Free professional tools
Tools for the work between records.
Small, transparent worksheets for working land professionals.
Use your own inputs. Keep the source and the open questions beside the result. No account required.
Open worksheet
Record handoff
Keep available records, missing context and the next question visible for the person reviewing the work.
These are the free tool surface. The planned paid OGML suite is not available through this website. For mineral-owner worksheets, visit Mineral Tools.
The working tool shelf.
Net mineral acre calculator
Gross tract acres × mineral ownership fraction = estimated net mineral acres
Division order decimal calculator
Credited net mineral acres ÷ governing unit acres × lease royalty = simplified acreage-based decimal
Lease bonus calculator
Payment-basis acres × stated bonus rate = worksheet bonus amount
Delay rental payment calculator
Payment-basis acres × stated rate × stated periods = worksheet rental amount
Area unit converter
Area amount × selected acres-per-unit factor = acres
HBP record screen
Available records + missing context = a review checklist, not a lease-status determination
Runsheet format reference
Recording reference + parties + description + document effect + open questions = a working record entry
Shut-in payment calculator
Stated payment-basis units × stated rate × stated periods = worksheet payment amount
Bring a worksheet question.
Describe your role, area of work and what you are trying to organize. Our Landmen LLC receives your inquiry and can reply by email.
Keep confidential client records and private documents out of this first request. These tools do not upload files or open a paid account.