West Texas Runtime Guarantee Calculator Natural Gas Compression

Free Tool · Runtime Guarantee Credit Calculator

Every unit.
Every hour.
Every credit owed.

Enter each unit’s rental and down hours and see the credit your runtime guarantee owes, unit by unit, along with what a fleet average would have missed.

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Unit by unit
How most contracts measure the guarantee
Paste from Excel
Three columns: unit, rental, hours
One page
Credit summary for the vendor meeting

Runtime Guarantee Credit Calculator

Estimates are fine. Every result updates as you type.

Your Contract

%
The share of the month each unit is promised to run.
Days in the month
Three columns: unit, monthly rental, down hours.

Credit owed this month

$0
0 of 0 units are owed a credit
A fleet average would find
$0
Fleet runtime
0%
vs. guarantee
Down hours
0
all units, this month
Allowed per unit
0
hours before a credit
Recover It: Schedule a Presentation
Show the mathHide the mathHow each result is worked out, step by step, from the numbers you entered.
Credit owed, unit by unit$541
  1. Hours in the month30 days × 24 h720 h
  2. Down hours allowed per unit720 h × (100% − 98%)14.4 h
  3. C-102(31 h − 14.4 h) × $4,700 ÷ 720 h$108
  4. C-104(74.3 h − 14.4 h) × $5,200 ÷ 720 h$432
  5. 4 units stayed inside the allowancedown no more than 14.4 h, so no credit$0
  6. Credit owed, unit by unit$108 + $432$541
A fleet average finds$262
  1. Hours in the month30 days × 24 h720 h
  2. Down hours allowed per unit720 h × (100% − 98%)14.4 h
  3. Down hours, all unitsevery unit’s down hours, added up126.3 h
  4. Fleet allowance14.4 h × 6 units86.4 h
  5. Average rent per unitevery unit’s rent, added up, ÷ 6 units$4,733.33
  6. A fleet average finds(126.3 h − 86.4 h) × $4,733.33 ÷ 720 h$262
Unit by unit finds more$279
  1. Hours in the month30 days × 24 h720 h
  2. Down hours allowed per unit720 h × (100% − 98%)14.4 h
  3. C-102(31 h − 14.4 h) × $4,700 ÷ 720 h$108
  4. C-104(74.3 h − 14.4 h) × $5,200 ÷ 720 h$432
  5. 4 units stayed inside the allowancedown no more than 14.4 h, so no credit$0
  6. Credit owed, unit by unit$108 + $432$541
  7. Down hours, all unitsevery unit’s down hours, added up126.3 h
  8. Fleet allowance14.4 h × 6 units86.4 h
  9. Average rent per unitevery unit’s rent, added up, ÷ 6 units$4,733.33
  10. A fleet average finds(126.3 h − 86.4 h) × $4,733.33 ÷ 720 h$262
  11. Unit by unit finds more$541 − $262$279
Fleet runtime97.1%
  1. Hours in the month30 days × 24 h720 h
  2. Down hours, all unitsevery unit’s down hours, added up126.3 h
  3. Fleet runtime100% − 126.3 h ÷ (6 units × 720 h)97.1%
Down hours, all units126.3
  1. Down hours, all unitsevery unit’s down hours, added up126.3
Hours beyond the allowance76.5
  1. Hours in the month30 days × 24 h720 h
  2. Down hours allowed per unit720 h × (100% − 98%)14.4 h
  3. C-102(31 h − 14.4 h) × $4,700 ÷ 720 h$108
  4. C-104(74.3 h − 14.4 h) × $5,200 ÷ 720 h$432
  5. 4 units stayed inside the allowancedown no more than 14.4 h, so no credit$0
  6. Hours beyond the allowance16.6 h + 59.9 h76.5
Allowed hours per unit14.4
  1. Hours in the month30 days × 24 h720 h
  2. Down hours allowed per unit720 h × (100% − 98%)14.4
Fleet allowance86.4
  1. Hours in the month30 days × 24 h720 h
  2. Down hours allowed per unit720 h × (100% − 98%)14.4 h
  3. Fleet allowance14.4 h × 6 units86.4
orange a number you enteredgray result of an earlier stepSteps are rounded for display; totals use the exact numbers.

Your Units

UnitMonthly rentalDown hoursRuntimeOver allowanceCredit
Total

Take this credit summary to your next vendor meeting

Get the one-page PDF report by email, with everything you entered and a link that reopens this page with your numbers filled in.

How the numbers are calculated

The per-unit, per-month arithmetic Vendor Callout runs before every vendor meeting.

Allowed down hours per unit

allowed = (100% − guarantee) × days × 24

Calendar hours: 672, 696, 720 or 744.

Credit per unit

credit = max(0, down hours − allowed) × monthly rental ÷ hours in the month

Each unit is measured on its own, the way most contracts read.

Fleet runtime

runtime = 1 − total down hours ÷ (units × hours in the month)

A summary figure; it does not decide the credit.

Fleet-average credit (for comparison)

max(0, total down − allowed × units) × average hourly rental

Shown so you can see what averaging hides.

Frequently asked questions

Because that is how most contracts measure it. A fleet average lets a handful of units that ran perfectly hide the ones that sat down for days. Crediting each unit on its own finds every hour the contract owes.

Yes. Copy three columns from Excel or Google Sheets (unit, monthly rental, down hours) and paste them into the box. The table is replaced with what you paste.

The time from when the unit went down until it was back online and compressing, for every outage in the month, added together. Whether planned maintenance counts depends on your contract.

They will accept documented downtime. Each outage needs a time down, a vendor arrival and a back-online time that both sides can see. That record is what Vendor Callout keeps for you.

Only if you ask us to email it. The math runs in your browser. If you use Email Me This Report, we receive your email address, what you entered and the figures in the report so we can send it to you; nothing else you type reaches our servers.

More free tools

See all free tools
Allowed Downtime Calculator Hours a unit can be down before the runtime guarantee pays. Open the tool
Compressor Vendor Scorecard Response, repair time and runtime, graded for the vendor meeting. Open the tool
Compressor Callout Log Template Free Excel log with downtime, response time and a monthly credit summary. Open the tool

Downtime is costing you MILLIONS!

Stop estimating. Start documenting.

Vendor Callout logs each outage from the truck, prices every down-hour and every deferred barrel as it happens, and prints the vendor report that recovers the credit.

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