Minn. Energy Res. Corp. v. Comm'r of Revenue, 909 N.W.2d 569

Background

MERC challenged the Commissioner of Revenue's valuation of its natural gas pipeline distribution system for tax years 2008–2012; after trial the tax court found MERC overcame the presumption of the Commissioner's valuation and adjusted values for those years.
On appeal in MERC I, this court affirmed most of the tax court's valuation rulings but remanded limited issues: the beta-factor calculation and reconsideration of MERC's external obsolescence claim because the tax court applied the Eurofresh standard.
This court rejected adopting the Eurofresh standard, held MERC’s evidence was sufficient to make a prima facie case of external obsolescence, and instructed the tax court on remand to consider all evidence to determine whether a downward adjustment under the cost approach was warranted.
On remand, neither party presented new evidence; they relied on supplemental briefs and the existing trial record. The tax court reviewed the full record and found MERC failed to prove external obsolescence by a preponderance of the evidence for any year.
MERC appeals the remand decision arguing: (1) this court’s MERC I created a (rebuttable) presumption in its favor so the Commissioner needed to rebut; and (2) the tax court applied an incorrect (overly demanding) standard or otherwise erred in rejecting MERC’s external-obsolescence proof.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether MERC I created a presumption/rebuttable presumption of external obsolescence that shifted burden to Commissioner on remand	MERC: MERC I found its evidence "sufficient to make out a prima facie case," so the Commissioner had to rebut on remand; absence of rebuttal means MERC prevailed	Commissioner: MERC I did not shift burden; MERC retained burden to prove obsolescence by a preponderance on remand	Court: No presumption created; MERC kept burden to prove external obsolescence by preponderance of the evidence
Whether the tax court applied the wrong standard on remand (i.e., imposed Eurofresh or another heightened test)	MERC: Tax court effectively used a heightened standard exceeding what MERC I allowed, improperly rejecting its evidence	Commissioner: Tax court correctly reconsidered credibility and weighed all evidence consistent with MERC I	Court: Tax court did not revert to Eurofresh; it properly evaluated credibility, weight, and relevance of MERC's evidence
Whether MERC proved external obsolescence on the record as a whole	MERC: Evidence of economic conditions, regulation, conservation, and other negative externalities warranted a downward adjustment	Commissioner: Record (including growth in customers and sales) did not support external obsolescence; MERC’s evidence was not credible or sufficiently probative	Court: Tax court’s factual credibility findings supported; MERC failed to prove external obsolescence by a preponderance
Whether the tax court’s valuation conclusion was legally or factually erroneous	MERC: Tax court erred legally by misapplying burden/standard and factually by rejecting probative evidence	Commissioner: Tax court acted within its fact-finding role and followed appellate instructions	Court: Affirmed tax court; conclusions were justified by the record and in conformity with law

Key Cases Cited

Minn. Energy Res. Corp. v. Comm’r of Revenue, 886 N.W.2d 786 (Minn. 2016) (MERC I) (remanded for reconsideration of external obsolescence and beta-factor; held Eurofresh standard not required)
Eden Prairie Mall, LLC v. County of Hennepin, 830 N.W.2d 16 (Minn. 2013) (standard of review for tax court decisions)
Conga Corp. v. Comm’r of Revenue, 868 N.W.2d 41 (Minn. 2015) (taxpayer retains burden of proof even after overcoming presumption)
S. Minn. Beet Sugar Coop. v. County of Renville, 737 N.W.2d 545 (Minn. 2007) (taxpayer bears burden at trial to show assessment invalid)
Beck v. County of Todd, 824 N.W.2d 636 (Minn. 2013) (tax court best positioned to assess witness credibility)
Guardian Energy, LLC v. County of Waseca, 868 N.W.2d 253 (Minn. 2015) (external obsolescence defined and addressed under the cost approach)
Eurofresh, Inc. v. Graham County, 187 P.3d 530 (Ariz. Ct. App.) (example of a heightened external-obsolescence standard rejected by this court)